MD5: e8065df8a906c05eb6b6c05d5427b591
SHA1: 4441405a3a6a47d82ad1589dbb2083c7eeb5a4ec
SHA256: 5411833f6981ee2eaaf92b68ff03749421b01897e6c743ed02a1e1a69e8e1dec
SSDeep: 6144:LZMWTa8mbUYkzJDV5JwMC3i9XRGW0NyrRW:O0aBbRkzT5Jwn4TgyrRW
Size: 264551 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2013-02-28 22:20:53
Analyzed on: WindowsXP SP3 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):

%original file name%.exe:860
%original file name%.exe:228
ciorc.exe:188
ciorc.exe:1336

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

Explorer.EXE:1572

Mutexes

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

File activity

The process %original file name%.exe:228 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Application Data\Laescu\ciorc.exe (264 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmp018b617f.bat (177 bytes)

Registry activity

The process %original file name%.exe:860 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "16 D6 82 34 F1 7A 19 25 55 1D 65 18 2B 42 BF 75"

The process %original file name%.exe:228 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "59 CC 73 79 EE D5 A1 8E 36 C4 DD 54 5F B9 63 02"

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

The process ciorc.exe:188 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "E5 7C A7 33 FE 10 E8 01 43 AF DA 42 33 0E F2 8E"

The process ciorc.exe:1336 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "25 B7 E1 A5 C0 D1 F6 C5 BC E1 1D 14 51 05 0B D4"

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

Dropped PE files

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

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Total found: 1
2eef79fd0a5acee3d19d863986a3235e

URLs

No activity has been detected.

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Web Traffic was not found.

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

.text

`.data

.reloc

%s%s%s

hXXp://VVV.google.com/webhp

%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";

facebook.com

hXXps://

Cookie: %s

Referer: %s

Accept: %s

Accept-Language: %s

Accept-Encoding: %s

= *9=*:,:*

6%!  ."$=;

2-'5=

(/:,062.{1/3

)4>-)>.8.

1,&51&6 6

$#6 ;5:3

,(>**"" %3

==$">"*|9= 

Vimfjst&Ea}o-Ang}

0-'40'7!7'

-'64)076)

$/9%:'1"

=9;=!5\\

gdiplus.dll

GdiplusShutdown

ole32.dll

gdi32.dll

_getFirefoxCookie

HTTP/1.

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

update.exe

config.bin

CreatePipe

GetProcessHeap

KERNEL32.dll

GetKeyboardLayoutList

ExitWindowsEx

SetKeyboardState

MapVirtualKeyW

OpenWindowStationW

GetProcessWindowStation

CreateWindowStationW

CloseWindowStation

SetProcessWindowStation

MsgWaitForMultipleObjects

GetKeyboardState

USER32.dll

RegOpenKeyExW

RegEnumKeyExW

RegCloseKey

RegCreateKeyW

RegEnumKeyW

RegQueryInfoKeyW

RegCreateKeyExW

ADVAPI32.dll

UrlUnescapeA

SHDeleteKeyW

PathIsURLW

SHLWAPI.dll

ShellExecuteW

SHELL32.dll

Secur32.dll

SetViewportOrgEx

GDI32.dll

WS2_32.dll

CertDeleteCertificateFromStore

CertOpenSystemStoreW

CertCloseStore

PFXImportCertStore

CertEnumCertificatesInStore

CertDuplicateCertificateContext

PFXExportCertStoreEx

CRYPT32.dll

HttpQueryInfoA

InternetCrackUrlA

HttpAddRequestHeadersW

HttpOpenRequestA

HttpAddRequestHeadersA

HttpSendRequestExA

HttpSendRequestExW

HttpSendRequestW

GetUrlCacheEntryInfoW

HttpOpenRequestW

HttpEndRequestA

HttpSendRequestA

HttpEndRequestW

WININET.dll

OLEAUT32.dll

NETAPI32.dll

VERSION.dll

WINMM.dll

PSSSSSSh

2 2$2(2,2024282

<#<(<.<:<[<|<

42>204:4

Process: %s

Input: %s

sXXXX

SysShadow

Company: %s

Product: %s

Version: %s

Software\Microsoft\Windows\CurrentVersion\Uninstall

%u: %s | %s | %s

Chrome

Firefox

Global\XXX

nspr4.dll

chrome.dll

\StringFileInfo\xx\%s

ntdll.dll

kernel32.dll

"%s" %s

/c "%s"

%sx.%s

%sx

SELECT * FROM %s

%Documents and Settings%\%current user%\Application Data

{8C23627F-B587-84AE-7E5F-D433EC1486CD}

%Documents and Settings%\%current user%\Application Data\Owkua\ziel.kue

%Documents and Settings%\%current user%\Application Data\Owkua

ziel.kue

Global\{1A58D05A-07A2-12D5-7E5F-D433EC1486CD}

%Documents and Settings%\%current user%\Application Data\Olkeu\goep.ivb

%Documents and Settings%\%current user%\Application Data\Olkeu

goep.ivb

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):
   

   %original file name%.exe:860
   %original file name%.exe:228
   ciorc.exe:188
   ciorc.exe:1336
   

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

   %Documents and Settings%\%current user%\Application Data\Laescu\ciorc.exe (264 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\tmp018b617f.bat (177 bytes)

5. Reboot the computer.
   

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