Trojan.Zbot.IUC_b0ae6870e5

by malwarelabrobot on December 18th, 2016 in Malware Descriptions.

HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.Zbot.IUC (B) (Emsisoft), Trojan.Zbot.IUC (AdAware), Trojan-PSW.Win32.Zbot.6.FD, GenericInjector.YR, BackdoorCaphaw_QKKBAL.YR, TrojanPSWZbot.YR (Lavasoft MAS)
Behaviour: Trojan-PSW, Trojan, Backdoor


The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.

Requires JavaScript enabled!

Summary
Dynamic Analysis
Static Analysis
Network Activity
Map
Strings from Dumps
Removals

MD5: b0ae6870e5f572134d004edb85295b8d
SHA1: 5ae7257f7c3a820021be35f56a383790a90130cc
SHA256: b4931660fc81d70b2bff7961a3c609658e717674d300dd95760109cf10623dc1
SSDeep: 3072:6eULA0rFIzyYVFSkXX7x1PSOcXdkgYe4dKdBW36yDFPxKqUqrtcrQquoQEz//:6eK WYN/dcXn4MBWF/UqxiBV5//
Size: 310784 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: Xacti, LLC
Created at: 2016-05-27 01:41:09
Analyzed on: Windows7 SP1 32-bit


Summary:

Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

WinMail.exe:2696
%original file name%.exe:1072

The Trojan injects its code into the following process(es):

Explorer.EXE:244
TPAutoConnect.exe:612
conhost.exe:1076
taskhost.exe:1924
Dwm.exe:2044
conhost.exe:3876

Mutexes

The following mutexes were created/opened:
No objects were found.

File activity

The process WinMail.exe:2696 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\TarB25F.tmp (2712 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\WindowsMail.MSMessageStore (40696 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Local Folders\Drafts\winmail.fol (560 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\CabB25E.tmp (51 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Backup\temp\WindowsMail.pat (16 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Local Folders\Junk E-mail\winmail.fol (592 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Backup\temp\edb00002.log (2 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Local Folders\Sent Items\winmail.fol (592 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Local Folders\Deleted Items\winmail.fol (608 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Local Folders\Outbox\winmail.fol (560 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\ppcrlui_2696_2 (1281 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Local Folders\Inbox\winmail.fol (544 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\tmp.edb (1728 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\edb.log (25168 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\edb.chk (300 bytes)
C:\Users\"%CurrentUserName%"\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E6024EAC88E6B6165D49FE3C95ADD735 (558 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Local Folders\Inbox\6AE91448-00000001.eml:OECustomProperty (260 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Backup\temp\WindowsMail.MSMessageStore (99 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Local Folders\Inbox\6AE91448-00000001.eml (1924 bytes)
C:\Users\"%CurrentUserName%"\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E6024EAC88E6B6165D49FE3C95ADD735 (968 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\WindowsMail.pat (400 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\edbtmp.log (3466 bytes)

The Trojan deletes the following file(s):

C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Backup\old\WindowsMail.pat (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\TarB25F.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\ppcrlui_2696_2.ui (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\edb00001.log (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\CabB25E.tmp (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Temp\ppcrlui_2696_2 (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Backup\old\WindowsMail.MSMessageStore (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\edbtmp.log (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Backup\old\edb00001.log (0 bytes)
C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Backup\old (0 bytes)

The process %original file name%.exe:1072 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\tmp368d0b04.bat (179 bytes)
C:\Users\"%CurrentUserName%"\AppData\Roaming\Oqzuk\doiw.exe (621 bytes)

Registry activity

The process WinMail.exe:2696 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKCU\Software\Microsoft\IdentityCRL\Dynamic Salt]
"Size" = "330"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"AutoDetect" = "1"

[HKCU\Software\Microsoft\Windows Mail]
"Compact Check Count" = "2"
"Settings Upgraded" = "10"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "0"

[HKCU\Software\Microsoft\Windows Mail\Junk Mail\Block Senders List]
"Version" = "327680"

[HKCU\Identities\{C692FCB0-9162-422E-94A4-4CD072B19CA9}]
"Identity Ordinal" = "1"

[HKCU\Software\Microsoft\Windows Mail]
"LastBackup" = "E0 07 0C 00 06 00 11 00 13 00 25 00 18 00 93 03"
"Running" = "1"
"V7StoreMigDone" = "01 00 00 00"
"StoreMigratedV5" = "1"

[HKCU\Software\Microsoft\Windows Mail\Junk Mail\Safe Senders List]
"Version" = "327680"

[HKCU\Software\Microsoft\Windows Mail\Mail]
"Welcome Message" = "0"

[HKCU\Software\Microsoft\Windows Mail]
"SpoolerDlgPos" = "2C 00 00 00 00 00 00 00 01 00 00 00 FF FF FF FF"

[HKCU\Software\Microsoft\IdentityCRL\Dynamic Salt]
"Value" = "01 00 00 00 D0 8C 9D DF 01 15 D1 11 8C 7A 00 C0"

[HKCU\Identities]
"Identity Ordinal" = "2"

[HKCU\Software\Microsoft\Windows Mail\Mail]
"Secure Safe Attachments" = "1"

[HKCU\Software\Classes\Local Settings\MuiCache\2F\52C64B7E]
"LanguageList" = "en-US, en"

[HKCU\Software\Microsoft\Windows Mail\Mail]
"Default_CodePage" = "28591"

[HKCU\Software\Microsoft\WAB]
"NamedPropCount" = "1"

[HKCU\Software\Microsoft\IAM\Accounts]
"ConnectionSettingsMigrated" = "1"

[HKCU\Software\Microsoft\Windows Mail]
"SpoolerTack" = "0"

[HKCU\Software\Microsoft\IAM]
"Default News Account" = "account{CE54EE8F-8454-4E11-A69C-0E6F9BED6C0A}.oeaccount"
"Default LDAP Account" = "account{5F33D8D7-3326-4E0C-969F-F201824EF068}.oeaccount"

[HKCU\Software\Microsoft\Windows Mail]
"lastrun" = "4D 05 CA 03 9D 58 D2 01"

[HKCU\Software\Microsoft\Windows Mail\Mail]
"Safe Attachments" = "1"

[HKCU\Software\Microsoft\IAM]
"Server ID" = "2"

[HKCU\Software\Microsoft\WAB]
"NamedProps" = "04 20 06 00 00 00 00 00 C0 00 00 00 00 00 00 46"

The Trojan deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass"

[HKCU\Software\Microsoft\WAB]
"NamedPropCount"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName"

[HKCU\Identities]
"Changing"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass"

[HKCU\Identities]
"IncomingID"
"OutgoingID"

[HKCU\Software\Microsoft\WAB]
"NamedProps"

Dropped PE files

MD5 File path
cd7771f2c800f9151ae839f17b97de79 c:\Users\"%CurrentUserName%"\AppData\Roaming\Oqzuk\doiw.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

The Trojan installs the following user-mode hooks in WININET.dll:

HttpSendRequestExA
HttpSendRequestA
HttpSendRequestW
HttpSendRequestExW
InternetReadFileExA
InternetQueryDataAvailable
InternetReadFile
HttpQueryInfoA
InternetCloseHandle

The Trojan installs the following user-mode hooks in CRYPT32.dll:

PFXImportCertStore

The Trojan installs the following user-mode hooks in USER32.dll:

SetCursorPos
ReleaseCapture
SetCapture
GetMessagePos
DefDlgProcW
CallWindowProcA
DefMDIChildProcA
DefFrameProcA
GetUpdateRgn
DefFrameProcW
DefMDIChildProcW
DefDlgProcA
GetClipboardData
GetMessageW
TranslateMessage
PeekMessageW
EndPaint
BeginPaint
GetDC
ReleaseDC
DefWindowProcW
GetWindowDC
GetDCEx
CallWindowProcW
PeekMessageA
GetMessageA
RegisterClassExW
RegisterClassW
RegisterClassA
DefWindowProcA
GetUpdateRect
GetCursorPos
GetCapture
RegisterClassExA
OpenInputDesktop
SwitchDesktop

The Trojan installs the following user-mode hooks in WS2_32.dll:

send
WSASend
closesocket

The Trojan installs the following user-mode hooks in kernel32.dll:

GetFileAttributesExW

The Trojan installs the following user-mode hooks in ntdll.dll:

LdrLoadDll
ZwCreateUserProcess

Propagation

VersionInfo

No information is available.

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
.code 4096 62449 62464 3.18667 d0131a47c0aba5d74cc898ab7230a712
.text 69632 51791 52224 4.53421 09eedfe8989f368d4a88bdd09a0e4021
.rdata 122880 226 512 0.80459 2661b88ca734e1392afd62ca2b4defa6
.data 126976 152164 143360 5.26879 4e5a1adcf603fc2cea69ff3a76ca2894
.rsrc 282624 50184 50688 3.23948 fe6dcc5cc5270edf7a33f3cec1e74be7

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

URLs

URL IP
hxxp://www.gkmexico.com/sos/css/bor.bin 158.69.126.3
hxxp://a1363.dscg.akamai.net/pki/crl/products/CodeSignPCA.crl
hxxp://crl.microsoft.com/pki/crl/products/CodeSignPCA.crl 212.30.134.167


IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

ET TROJAN Possible Zbot Activity Common Download Struct
ET CURRENT_EVENTS Zbot Generic URI/Header Struct .bin

Traffic

GET /sos/css/bor.bin HTTP/1.1
Accept: */*
Connection: Close
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0E; .NET4.0C)
Host: VVV.gkmexico.com
Cache-Control: no-cache


HTTP/1.1 403 Forbidden
Date: Sat, 17 Dec 2016 19:37:19 GMT
Server: Apache/2
Accept-Ranges: bytes
Vary: Accept-Encoding,User-Agent
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html
a2..<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<HTML&
gt;<HEAD>.<TITLE>403 Forbidden</TITLE>.</HEAD>
<BODY>.<H1>Forbidden</H1>.You don't have permission 
to access ..29../sos/css/bor.bin on this server..<HR>.<I>.
.11c..VVV.gkmexico.com</I>.</BODY></HTML>...........
......................................................................
......................................................................
......................................................................
..............................0..



GET /sos/css/bor.bin HTTP/1.1
Accept: */*
Connection: Close
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0E; .NET4.0C)
Host: VVV.gkmexico.com
Cache-Control: no-cache


HTTP/1.1 403 Forbidden
Date: Sat, 17 Dec 2016 19:37:36 GMT
Server: Apache/2
Accept-Ranges: bytes
Vary: Accept-Encoding,User-Agent
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html
a2..<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<HTML&
gt;<HEAD>.<TITLE>403 Forbidden</TITLE>.</HEAD>
<BODY>.<H1>Forbidden</H1>.You don't have permission 
to access ..29../sos/css/bor.bin on this server..<HR>.<I>.
.11c..VVV.gkmexico.com</I>.</BODY></HTML>...........
......................................................................
.............................



GET /sos/css/bor.bin HTTP/1.1
Accept: */*
Connection: Close
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0E; .NET4.0C)
Host: VVV.gkmexico.com
Cache-Control: no-cache


HTTP/1.1 403 Forbidden
Date: Sat, 17 Dec 2016 19:37:30 GMT
Server: Apache/2
Accept-Ranges: bytes
Vary: Accept-Encoding,User-Agent
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html
a2..<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<HTML&
gt;<HEAD>.<TITLE>403 Forbidden</TITLE>.</HEAD>
<BODY>.<H1>Forbidden</H1>.You don't have permission 
to access ..29../sos/css/bor.bin on this server..<HR>.<I>.
.11c..VVV.gkmexico.com</I>.</BODY></HTML>...........
......................................................................
......................................................................
......................................................................
..............................0..



GET /sos/css/bor.bin HTTP/1.1
Accept: */*
Connection: Close
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0E; .NET4.0C)
Host: VVV.gkmexico.com
Cache-Control: no-cache


HTTP/1.1 403 Forbidden
Date: Sat, 17 Dec 2016 19:37:30 GMT
Server: Apache/2
Accept-Ranges: bytes
Vary: Accept-Encoding,User-Agent
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html
a2..<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<HTML&
gt;<HEAD>.<TITLE>403 Forbidden</TITLE>.</HEAD>
<BODY>.<H1>Forbidden</H1>.You don't have permission 
to access ..29../sos/css/bor.bin on this server..<HR>.<I>.
.11c..VVV.gkmexico.com</I>.</BODY></HTML>...........
......................................................................
......................................................................
......................................................................
..............................0..



GET /sos/css/bor.bin HTTP/1.1
Accept: */*
Connection: Close
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0E; .NET4.0C)
Host: VVV.gkmexico.com
Cache-Control: no-cache


HTTP/1.1 403 Forbidden
Date: Sat, 17 Dec 2016 19:37:35 GMT
Server: Apache/2
Accept-Ranges: bytes
Vary: Accept-Encoding,User-Agent
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html
a2..<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<HTML&
gt;<HEAD>.<TITLE>403 Forbidden</TITLE>.</HEAD>
<BODY>.<H1>Forbidden</H1>.You don't have permission 
to access ..29../sos/css/bor.bin on this server..<HR>.<I>.
.11c..VVV.gkmexico.com</I>.</BODY></HTML>...........
......................................................................
......................................................................
......................................................................
..............................0..



GET /sos/css/bor.bin HTTP/1.1
Accept: */*
Connection: Close
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0E; .NET4.0C)
Host: VVV.gkmexico.com
Cache-Control: no-cache


HTTP/1.1 403 Forbidden
Date: Sat, 17 Dec 2016 19:37:25 GMT
Server: Apache/2
Accept-Ranges: bytes
Vary: Accept-Encoding,User-Agent
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html
a2..<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<HTML&
gt;<HEAD>.<TITLE>403 Forbidden</TITLE>.</HEAD>
<BODY>.<H1>Forbidden</H1>.You don't have permission 
to access ..29../sos/css/bor.bin on this server..<HR>.<I>.
.11c..VVV.gkmexico.com</I>.</BODY></HTML>...........
......................................................................
......................................................................
......................................................................
..............................0..



GET /sos/css/bor.bin HTTP/1.1
Accept: */*
Connection: Close
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0E; .NET4.0C)
Host: VVV.gkmexico.com
Cache-Control: no-cache


HTTP/1.1 403 Forbidden
Date: Sat, 17 Dec 2016 19:37:19 GMT
Server: Apache/2
Accept-Ranges: bytes
Vary: Accept-Encoding,User-Agent
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html
a2..<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<HTML&
gt;<HEAD>.<TITLE>403 Forbidden</TITLE>.</HEAD>
<BODY>.<H1>Forbidden</H1>.You don't have permission 
to access ..29../sos/css/bor.bin on this server..<HR>.<I>.
.11c..VVV.gkmexico.com</I>.</BODY></HTML>...........
......................................................................
......................................................................
......................................................................
..............................0..



GET /sos/css/bor.bin HTTP/1.1
Accept: */*
Connection: Close
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0E; .NET4.0C)
Host: VVV.gkmexico.com
Cache-Control: no-cache


HTTP/1.1 403 Forbidden
Date: Sat, 17 Dec 2016 19:37:24 GMT
Server: Apache/2
Accept-Ranges: bytes
Vary: Accept-Encoding,User-Agent
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html
a2..<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<HTML&
gt;<HEAD>.<TITLE>403 Forbidden</TITLE>.</HEAD>
<BODY>.<H1>Forbidden</H1>.You don't have permission 
to access ..29../sos/css/bor.bin on this server..<HR>.<I>.
.11c..VVV.gkmexico.com</I>.</BODY></HTML>...........
......................................................................
......................................................................
......................................................................
..............................0..



GET /pki/crl/products/CodeSignPCA.crl HTTP/1.1
Connection: Keep-Alive
Accept: */*
User-Agent: Microsoft-CryptoAPI/6.1
Host: crl.microsoft.com


HTTP/1.1 200 OK
Content-Type: application/pkix-crl
Last-Modified: Mon, 16 Apr 2012 23:49:48 GMT
Accept-Ranges: bytes
ETag: "0f6669b2b1ccd1:0"
Server: Microsoft-IIS/8.5
VTag: 438195957300000000
P3P: CP="ALL IND DSP COR ADM CONo CUR CUSo IVAo IVDo PSA PSD TAI TELo OUR SAMo CNT COM INT NAV ONL PHY PRE PUR UNI"
X-Powered-By: ASP.NET
Content-Length: 558
Cache-Control: max-age=900
Date: Sat, 17 Dec 2016 19:37:33 GMT
Connection: keep-alive
0..*0......0...*.H........0..1.0...U....US1.0...U....Washington1.0...U
....Redmond1.0...U....Microsoft Corporation1 0)..U..."Copyright (c) 20
00 Microsoft Corp.1#0!..U....Microsoft Code Signing PCA..111110211944Z
..420416234935Z.7050...U.#..0...%. K].rT....*.....S.0... .....7.......
..0...*.H...............&..%PIu@.....\0KF....0..^.h9=.1jT,5.L....Ed ..
6.......i.6.xva....oX.^f'....s...!......O...h.1a..Ud);.?....J_...Fu...
.<v.zx..t..h.0JU%.nk;..B[4.?&Zm^..M.!.'...w.u.\T..Tr..Ch.[.z:....#.
..T.4Ct.......,...c..}F..U....:..7J...%.#..D6 . ....G..#....T..G;.....
.HTTP/1.1 200 OK..Content-Type: application/pkix-crl..Last-Modified: M
on, 16 Apr 2012 23:49:48 GMT..Accept-Ranges: bytes..ETag: "0f6669b2b1c
cd1:0"..Server: Microsoft-IIS/8.5..VTag: 438195957300000000..P3P: CP="
ALL IND DSP COR ADM CONo CUR CUSo IVAo IVDo PSA PSD TAI TELo OUR SAMo 
CNT COM INT NAV ONL PHY PRE PUR UNI"..X-Powered-By: ASP.NET..Content-L
ength: 558..Cache-Control: max-age=900..Date: Sat, 17 Dec 2016 19:37:3
3 GMT..Connection: keep-alive..0..*0......0...*.H........0..1.0...U...
.US1.0...U....Washington1.0...U....Redmond1.0...U....Microsoft Corpora
tion1 0)..U..."Copyright (c) 2000 Microsoft Corp.1#0!..U....Microsoft 
Code Signing PCA..111110211944Z..420416234935Z.7050...U.#..0...%. K].r
T....*.....S.0... .....7.........0...*.H...............&..%PIu@.....\0
KF....0..^.h9=.1jT,5.L....Ed ..6.......i.6.xva....oX.^f'....s...!.....
.O...h.1a..Ud);.?....J_...Fu....<v.zx..t..h.0JU%.nk;..B[4.?&Zm^..M.
!.'...w.u.\T..Tr..Ch.[.z:....#...T.4Ct.......,...c..}F..U....:..7J
<<< skipped >>>

The Trojan connects to the servers at the folowing location(s):

Explorer.EXE_244_rwx_02C20000_00027000:

.text
`.data
.reloc
PR_OpenTCPSocket
hXXp://VVV.google.com/webhp
gdiplus.dll
GdiplusShutdown
ole32.dll
gdi32.dll
<;.8("9`%,/
,127!' ./9
5/ -?9/#$
./.-#**:
6 !26!1'1
7"52),,>
, >(3=2;
<7!="?):
&;1"&1!7!1
;1 "?&! ?
c,%udcvpdxv ~iydjGBT\YGmTRL[ZMI_
7.>.3; `
1:,0/2$7
?$6 39 ~
HTTP/1.1
hXXp://
hXXps://
HTTP/1.
userenv.dll
del "%s"
if exist "%s" goto d
del /F "%s"
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)
urlmon.dll
cabinet.dll
SSShlD
GetProcessHeap
KERNEL32.dll
ExitWindowsEx
OpenWindowStationW
GetProcessWindowStation
CreateWindowStationW
CloseWindowStation
SetProcessWindowStation
GetKeyboardState
MapVirtualKeyW
SetKeyboardState
MsgWaitForMultipleObjects
USER32.dll
RegOpenKeyExW
RegEnumKeyExW
RegCloseKey
RegCreateKeyExW
ADVAPI32.dll
PathIsURLW
UrlUnescapeA
SHDeleteKeyW
SHLWAPI.dll
ShellExecuteW
SHELL32.dll
Secur32.dll
SetViewportOrgEx
GDI32.dll
WS2_32.dll
PFXImportCertStore
CertDeleteCertificateFromStore
CertOpenSystemStoreW
CertCloseStore
CertEnumCertificatesInStore
CertDuplicateCertificateContext
PFXExportCertStoreEx
CRYPT32.dll
HttpSendRequestExA
HttpQueryInfoA
HttpSendRequestExW
HttpSendRequestW
HttpSendRequestA
GetUrlCacheEntryInfoW
HttpAddRequestHeadersW
HttpAddRequestHeadersA
InternetCrackUrlA
HttpOpenRequestA
WININET.dll
OLEAUT32.dll
NETAPI32.dll
>">->3>?>
5S5C5N5Z5
nspr4.dll
cGlobal\XXX
SysShadow
e.dat
kernel32.dll
"%s" %s
/c "%s"
%sx.%s
%sx
Global\{56D805F2-50D6-E44B-ABFA-FDFE6BA669A9}
C:\Users\"%CurrentUserName%"\AppData\Roaming
{C0A3B7D7-E2F3-7230-ABFA-FDFE6BA669A9}

TPAutoConnect.exe_612_rwx_003C0000_00027000:

.text
`.data
.reloc
PR_OpenTCPSocket
hXXp://VVV.google.com/webhp
gdiplus.dll
GdiplusShutdown
ole32.dll
gdi32.dll
<;.8("9`%,/
,127!' ./9
5/ -?9/#$
./.-#**:
6 !26!1'1
7"52),,>
, >(3=2;
<7!="?):
&;1"&1!7!1
;1 "?&! ?
c,%udcvpdxv ~iydjGBT\YGmTRL[ZMI_
7.>.3; `
1:,0/2$7
?$6 39 ~
HTTP/1.1
hXXp://
hXXps://
HTTP/1.
userenv.dll
del "%s"
if exist "%s" goto d
del /F "%s"
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)
urlmon.dll
cabinet.dll
SSShlD<
GetProcessHeap
KERNEL32.dll
ExitWindowsEx
OpenWindowStationW
GetProcessWindowStation
CreateWindowStationW
CloseWindowStation
SetProcessWindowStation
GetKeyboardState
MapVirtualKeyW
SetKeyboardState
MsgWaitForMultipleObjects
USER32.dll
RegOpenKeyExW
RegEnumKeyExW
RegCloseKey
RegCreateKeyExW
ADVAPI32.dll
PathIsURLW
UrlUnescapeA
SHDeleteKeyW
SHLWAPI.dll
ShellExecuteW
SHELL32.dll
Secur32.dll
SetViewportOrgEx
GDI32.dll
WS2_32.dll
PFXImportCertStore
CertDeleteCertificateFromStore
CertOpenSystemStoreW
CertCloseStore
CertEnumCertificatesInStore
CertDuplicateCertificateContext
PFXExportCertStoreEx
CRYPT32.dll
HttpSendRequestExA
HttpQueryInfoA
HttpSendRequestExW
HttpSendRequestW
HttpSendRequestA
GetUrlCacheEntryInfoW
HttpAddRequestHeadersW
HttpAddRequestHeadersA
InternetCrackUrlA
HttpOpenRequestA
WININET.dll
OLEAUT32.dll
NETAPI32.dll
>">->3>?>
5S5C5N5Z5
nspr4.dll
cGlobal\XXX
SysShadow
e.dat
kernel32.dll
"%s" %s
/c "%s"
%sx.%s
%sx
Global\{56D805F2-50D6-E44B-ABFA-FDFE6BA669A9}
C:\Users\"%CurrentUserName%"\AppData\Roaming
{C0A3B7D7-E2F3-7230-ABFA-FDFE6BA669A9}

conhost.exe_1076_rwx_00180000_00027000:

.text
`.data
.reloc
PR_OpenTCPSocket
hXXp://VVV.google.com/webhp
gdiplus.dll
GdiplusShutdown
ole32.dll
gdi32.dll
<;.8("9`%,/
,127!' ./9
5/ -?9/#$
./.-#**:
6 !26!1'1
7"52),,>
, >(3=2;
<7!="?):
&;1"&1!7!1
;1 "?&! ?
c,%udcvpdxv ~iydjGBT\YGmTRL[ZMI_
7.>.3; `
1:,0/2$7
?$6 39 ~
HTTP/1.1
hXXp://
hXXps://
HTTP/1.
userenv.dll
del "%s"
if exist "%s" goto d
del /F "%s"
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)
urlmon.dll
cabinet.dll
SSShlD
GetProcessHeap
KERNEL32.dll
ExitWindowsEx
OpenWindowStationW
GetProcessWindowStation
CreateWindowStationW
CloseWindowStation
SetProcessWindowStation
GetKeyboardState
MapVirtualKeyW
SetKeyboardState
MsgWaitForMultipleObjects
USER32.dll
RegOpenKeyExW
RegEnumKeyExW
RegCloseKey
RegCreateKeyExW
ADVAPI32.dll
PathIsURLW
UrlUnescapeA
SHDeleteKeyW
SHLWAPI.dll
ShellExecuteW
SHELL32.dll
Secur32.dll
SetViewportOrgEx
GDI32.dll
WS2_32.dll
PFXImportCertStore
CertDeleteCertificateFromStore
CertOpenSystemStoreW
CertCloseStore
CertEnumCertificatesInStore
CertDuplicateCertificateContext
PFXExportCertStoreEx
CRYPT32.dll
HttpSendRequestExA
HttpQueryInfoA
HttpSendRequestExW
HttpSendRequestW
HttpSendRequestA
GetUrlCacheEntryInfoW
HttpAddRequestHeadersW
HttpAddRequestHeadersA
InternetCrackUrlA
HttpOpenRequestA
WININET.dll
OLEAUT32.dll
NETAPI32.dll
>">->3>?>
5S5C5N5Z5
nspr4.dll
cGlobal\XXX
SysShadow
e.dat
kernel32.dll
"%s" %s
/c "%s"
%sx.%s
%sx
Global\{56D805F2-50D6-E44B-ABFA-FDFE6BA669A9}
{C0A3B7D7-E2F3-7230-ABFA-FDFE6BA669A9}

taskhost.exe_1924_rwx_00650000_00027000:

.text
`.data
.reloc
PR_OpenTCPSocket
hXXp://VVV.google.com/webhp
gdiplus.dll
GdiplusShutdown
ole32.dll
gdi32.dll
<;.8("9`%,/
,127!' ./9
5/ -?9/#$
./.-#**:
6 !26!1'1
7"52),,>
, >(3=2;
<7!="?):
&;1"&1!7!1
;1 "?&! ?
c,%udcvpdxv ~iydjGBT\YGmTRL[ZMI_
7.>.3; `
1:,0/2$7
?$6 39 ~
HTTP/1.1
hXXp://
hXXps://
HTTP/1.
userenv.dll
del "%s"
if exist "%s" goto d
del /F "%s"
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)
urlmon.dll
cabinet.dll
SSShlDe
GetProcessHeap
KERNEL32.dll
ExitWindowsEx
OpenWindowStationW
GetProcessWindowStation
CreateWindowStationW
CloseWindowStation
SetProcessWindowStation
GetKeyboardState
MapVirtualKeyW
SetKeyboardState
MsgWaitForMultipleObjects
USER32.dll
RegOpenKeyExW
RegEnumKeyExW
RegCloseKey
RegCreateKeyExW
ADVAPI32.dll
PathIsURLW
UrlUnescapeA
SHDeleteKeyW
SHLWAPI.dll
ShellExecuteW
SHELL32.dll
Secur32.dll
SetViewportOrgEx
GDI32.dll
WS2_32.dll
PFXImportCertStore
CertDeleteCertificateFromStore
CertOpenSystemStoreW
CertCloseStore
CertEnumCertificatesInStore
CertDuplicateCertificateContext
PFXExportCertStoreEx
CRYPT32.dll
HttpSendRequestExA
HttpQueryInfoA
HttpSendRequestExW
HttpSendRequestW
HttpSendRequestA
GetUrlCacheEntryInfoW
HttpAddRequestHeadersW
HttpAddRequestHeadersA
InternetCrackUrlA
HttpOpenRequestA
WININET.dll
OLEAUT32.dll
NETAPI32.dll
log%s
>">->3>?>
5S5C5N5Z5
nspr4.dll
cGlobal\XXX
SysShadow
e.dat
kernel32.dll
"%s" %s
/c "%s"
%sx.%s
%sx
C:\Users\"%CurrentUserName%"\AppData\Roaming\Luivy\yncuu.osu
C:\Users\"%CurrentUserName%"\AppData\Roaming\Luivy
yncuu.osu
Global\{56D805F2-50D6-E44B-ABFA-FDFE6BA669A9}
C:\Users\"%CurrentUserName%"\AppData\Roaming
{C0A3B7D7-E2F3-7230-ABFA-FDFE6BA669A9}

Dwm.exe_2044_rwx_010E0000_00027000:

.text
`.data
.reloc
PR_OpenTCPSocket
hXXp://VVV.google.com/webhp
gdiplus.dll
GdiplusShutdown
ole32.dll
gdi32.dll
<;.8("9`%,/
,127!' ./9
5/ -?9/#$
./.-#**:
6 !26!1'1
7"52),,>
, >(3=2;
<7!="?):
&;1"&1!7!1
;1 "?&! ?
c,%udcvpdxv ~iydjGBT\YGmTRL[ZMI_
7.>.3; `
1:,0/2$7
?$6 39 ~
HTTP/1.1
hXXp://
hXXps://
HTTP/1.
userenv.dll
del "%s"
if exist "%s" goto d
del /F "%s"
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)
urlmon.dll
cabinet.dll
SSShlD
GetProcessHeap
KERNEL32.dll
ExitWindowsEx
OpenWindowStationW
GetProcessWindowStation
CreateWindowStationW
CloseWindowStation
SetProcessWindowStation
GetKeyboardState
MapVirtualKeyW
SetKeyboardState
MsgWaitForMultipleObjects
USER32.dll
RegOpenKeyExW
RegEnumKeyExW
RegCloseKey
RegCreateKeyExW
ADVAPI32.dll
PathIsURLW
UrlUnescapeA
SHDeleteKeyW
SHLWAPI.dll
ShellExecuteW
SHELL32.dll
Secur32.dll
SetViewportOrgEx
GDI32.dll
WS2_32.dll
PFXImportCertStore
CertDeleteCertificateFromStore
CertOpenSystemStoreW
CertCloseStore
CertEnumCertificatesInStore
CertDuplicateCertificateContext
PFXExportCertStoreEx
CRYPT32.dll
HttpSendRequestExA
HttpQueryInfoA
HttpSendRequestExW
HttpSendRequestW
HttpSendRequestA
GetUrlCacheEntryInfoW
HttpAddRequestHeadersW
HttpAddRequestHeadersA
InternetCrackUrlA
HttpOpenRequestA
WININET.dll
OLEAUT32.dll
NETAPI32.dll
log%s
>">->3>?>
5S5C5N5Z5
nspr4.dll
cGlobal\XXX
SysShadow
e.dat
kernel32.dll
"%s" %s
/c "%s"
%sx.%s
%sx
:\Users\"%CurrentUserName%"\AppData\Roaming\Luivy\yncuu.osu
C:\Users\"%CurrentUserName%"\AppData\Roaming\Luivy
yncuu.osu
Global\{56D805F2-50D6-E44B-ABFA-FDFE6BA669A9}
C:\Users\"%CurrentUserName%"\AppData\Roaming
{C0A3B7D7-E2F3-7230-ABFA-FDFE6BA669A9}

conhost.exe_3876_rwx_001D0000_00027000:

.text
`.data
.reloc
PR_OpenTCPSocket
hXXp://VVV.google.com/webhp
gdiplus.dll
GdiplusShutdown
ole32.dll
gdi32.dll
<;.8("9`%,/
,127!' ./9
5/ -?9/#$
./.-#**:
6 !26!1'1
7"52),,>
, >(3=2;
<7!="?):
&;1"&1!7!1
;1 "?&! ?
c,%udcvpdxv ~iydjGBT\YGmTRL[ZMI_
7.>.3; `
1:,0/2$7
?$6 39 ~
HTTP/1.1
hXXp://
hXXps://
HTTP/1.
userenv.dll
del "%s"
if exist "%s" goto d
del /F "%s"
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)
urlmon.dll
cabinet.dll
SSShlD
GetProcessHeap
KERNEL32.dll
ExitWindowsEx
OpenWindowStationW
GetProcessWindowStation
CreateWindowStationW
CloseWindowStation
SetProcessWindowStation
GetKeyboardState
MapVirtualKeyW
SetKeyboardState
MsgWaitForMultipleObjects
USER32.dll
RegOpenKeyExW
RegEnumKeyExW
RegCloseKey
RegCreateKeyExW
ADVAPI32.dll
PathIsURLW
UrlUnescapeA
SHDeleteKeyW
SHLWAPI.dll
ShellExecuteW
SHELL32.dll
Secur32.dll
SetViewportOrgEx
GDI32.dll
WS2_32.dll
PFXImportCertStore
CertDeleteCertificateFromStore
CertOpenSystemStoreW
CertCloseStore
CertEnumCertificatesInStore
CertDuplicateCertificateContext
PFXExportCertStoreEx
CRYPT32.dll
HttpSendRequestExA
HttpQueryInfoA
HttpSendRequestExW
HttpSendRequestW
HttpSendRequestA
GetUrlCacheEntryInfoW
HttpAddRequestHeadersW
HttpAddRequestHeadersA
InternetCrackUrlA
HttpOpenRequestA
WININET.dll
OLEAUT32.dll
NETAPI32.dll
>">->3>?>
5S5C5N5Z5
nspr4.dll
cGlobal\XXX
SysShadow
e.dat
kernel32.dll
"%s" %s
/c "%s"
%sx.%s
%sx
Global\{56D805F2-50D6-E44B-ABFA-FDFE6BA669A9}
C:\Users\"%CurrentUserName%"\AppData\Roaming
{C0A3B7D7-E2F3-7230-ABFA-FDFE6BA669A9}


Remove it with Ad-Aware

  1. Click (here) to download and install Ad-Aware Free Antivirus.
  2. Update the definition files.
  3. Run a full scan of your computer.


Manual removal*

  1. Scan a system with an anti-rootkit tool.
  2. Terminate malicious process(es) (How to End a Process With the Task Manager):

    WinMail.exe:2696
    %original file name%.exe:1072

  3. Delete the original Trojan file.
  4. Delete or disinfect the following files created/modified by the Trojan:

    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\TarB25F.tmp (2712 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\WindowsMail.MSMessageStore (40696 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Local Folders\Drafts\winmail.fol (560 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\CabB25E.tmp (51 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Backup\temp\WindowsMail.pat (16 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Local Folders\Junk E-mail\winmail.fol (592 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Backup\temp\edb00002.log (2 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Local Folders\Sent Items\winmail.fol (592 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Local Folders\Deleted Items\winmail.fol (608 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Local Folders\Outbox\winmail.fol (560 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\ppcrlui_2696_2 (1281 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Local Folders\Inbox\winmail.fol (544 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\tmp.edb (1728 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\edb.log (25168 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\edb.chk (300 bytes)
    C:\Users\"%CurrentUserName%"\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E6024EAC88E6B6165D49FE3C95ADD735 (558 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Local Folders\Inbox\6AE91448-00000001.eml:OECustomProperty (260 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\Backup\temp\WindowsMail.MSMessageStore (99 bytes)
    C:\Users\"%CurrentUserName%"\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E6024EAC88E6B6165D49FE3C95ADD735 (968 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\WindowsMail.pat (400 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Microsoft\Windows Mail\edbtmp.log (3466 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Local\Temp\tmp368d0b04.bat (179 bytes)
    C:\Users\"%CurrentUserName%"\AppData\Roaming\Oqzuk\doiw.exe (621 bytes)

  5. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
  6. Reboot the computer.

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.

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