GenPack.Backdoor.Agent.AAAT_74db281d8a – Adaware

Dynamic Analysis

Payload

Behaviour	Description
IRCBot	A bot can communicate with command and control servers via IRC channel.
MSNWorm	A worm can spread its copies through the MSN Messanger.

Process activity

The GenPack creates the following process(es):

%original file name%.exe:700
MSNMSG~1.EXE:608
msnmsgrss.exe:1352

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

msnmsgrss.exe:1264

Mutexes

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

File activity

The process %original file name%.exe:700 makes changes in the file system.

The GenPack creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\IXP000.TMP\MSNMSG~1.EXE (1568 bytes)

The GenPack deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\IXP000.TMP\MSNMSG~1.EXE (0 bytes)

The process MSNMSG~1.EXE:608 makes changes in the file system.

The GenPack creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%WinDir%\msnmsgrss.exe (46 bytes)

Registry activity

The process %original file name%.exe:700 makes changes in the system registry.

The GenPack creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "70 BA AB 08 EA 38 E7 32 11 16 FC 26 31 EA B1 4C"

To automatically run itself each time Windows is booted, the GenPack adds the following link to its file to the system registry autorun key:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce]
"wextract_cleanup0" = "rundll32.exe %System%\advpack.dll,DelNodeRunDLL32 C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\IXP000.TMP\"

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

The GenPack disables automatic startup of the application by deleting the following autorun value:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce]
"wextract_cleanup0"

The process MSNMSG~1.EXE:608 makes changes in the system registry.

The GenPack creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "78 3F 0A 0E 85 09 16 2F DA D3 38 C6 70 E5 5C 9D"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

The GenPack modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

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

The GenPack modifies IE settings for security zones to map all web-nodes that bypassing the proxy to the Intranet Zone:

"ProxyBypass" = "1"

To automatically run itself each time Windows is booted, the GenPack adds the following link to its file to the system registry autorun key:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"Windows UDP Control Center" = "msnmsgrss.exe"

The GenPack modifies IE settings for security zones to map all urls to the Intranet Zone:

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

The process msnmsgrss.exe:1264 makes changes in the system registry.

The GenPack creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "74 60 32 4D 90 1E 65 A8 94 D9 95 D0 C4 86 9A 8C"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

Dropped PE files

MD5	File path
ad090589116ae6ba1efb9d09ec7fb098	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\IXP000.TMP\MSNMSG~1.EXE
ad090589116ae6ba1efb9d09ec7fb098	c:\WINDOWS\msnmsgrss.exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

A worm can spread its copies through the MSN Messanger.

Removals

Remove it with Ad-Aware

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

Manual removal*

Terminate malicious process(es) (How to End a Process With the Task Manager):
%original file name%.exe:700
MSNMSG~1.EXE:608
msnmsgrss.exe:1352
Delete the original GenPack file.
Delete or disinfect the following files created/modified by the GenPack:
%Documents and Settings%\%current user%\Local Settings\Temp\IXP000.TMP\MSNMSG~1.EXE (1568 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%WinDir%\msnmsgrss.exe (46 bytes)
Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce]
"wextract_cleanup0" = "rundll32.exe %System%\advpack.dll,DelNodeRunDLL32 C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\IXP000.TMP\"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"Windows UDP Control Center" = "msnmsgrss.exe"
Reboot the computer.

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

Static Analysis

VersionInfo

Company Name: Microsoft Corporation
Product Name: HD Player
Product Version: 6.00.2900.5512
Legal Copyright: (c) Microsoft Corporation. All rights reserved.
Legal Trademarks:
Original Filename: WEXTRACT.EXE
Internal Name: Wextract
File Version: 6.00.2900.5512 (xpsp.080413-2105)
File Description: Win32 Cabinet Self-Extractor
Comments:
Language: English (United States)

Company Name: Microsoft CorporationProduct Name: HD Player Product Version: 6.00.2900.5512Legal Copyright: (c) Microsoft Corporation. All rights reserved.Legal Trademarks: Original Filename: WEXTRACT.EXE Internal Name: Wextract File Version: 6.00.2900.5512 (xpsp.080413-2105)File Description: Win32 Cabinet Self-Extractor Comments: Language: English (United States)

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	39368	39424	4.53825	f835704aea0ef7298a021ca509203952
.data	45056	7140	7168	0.633989	f4947bd31ea462ff1a0828264a677807
.rsrc	53248	61020	61440	4.79204	0f241d0a3bc65f4cf814f5753e5eb75e
.idata	114688	3072	3072	3.30012	34e5ca468164248e4ac4a89c15eb863a

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Map

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

Strings from Dumps

msnmsgrss.exe_1264:

.text

`.rdata

@.data

t1SSSSh

SSShX

r.getfile

r.new

r.update

r.upd4te

login

msn.msg

msn.stop

aim.msg

aim.stop

triton.msg

triton.stop

GetWindowsDirectoryA

KERNEL32.dll

VkKeyScanA

keybd_event

USER32.dll

MSVCRT.dll

_acmdln

RegCloseKey

RegCreateKeyExA

ADVAPI32.dll

ole32.dll

OLEAUT32.dll

%s Welcome.

%s Fail.

%s Spy: %s!%s@%s (PM: "%s")

%s Fail by: %s!%s@%s (Pass Tried: %s)

%s %s out.

%s out.

%s No user at:

%s Invalid slot:

%s Kill: threads

%s No threads

%s Killed thread:

%s Failed kt:

%s %s already running: .

%s Fail start %s, err: .

%s Status: %s. Box Uptime: %s, Bot Uptime: %s, Connected for: %s.

%s Bot installed on: %s.

Go fuck yourself %s.

MSN// Message & Zipfile sent to: %d contacts.

MSN// Message sent to: %d Contacts.

MSN// Sent Stats - Messages: %d :: Files: %d :: Message & Files: %d.

%s logged in.

Removed by: %s!%s@%s

%s Advapi.dll Failed

%s PStore.dll Failed.

%s Naim thd.

%s RuC.

%s mis param.

%s Failed to parse command.

%s Downloading URL: %s to: %s.

%s Downloading update from: %s to: %s.

%seraseme_%d%d%d%d%d.exe

%s Thread Disabled.

%s Thread Activated: Sending Message.

%s Bad URL or DNS Error, error:

%s Update failed: Error executing file: %s.

%s Process Finished: "%s", Total Running Time: %s.

%s Created process: "%s", PID:

%s Failed to create process: "%s", error:

%s Couldn't parse path, error:

%s File download: %.1fKB to: %s @ %.1fKB/sec.

%s Couldn't open file for writing: %s.

Ping Timeout? (%d-%d)%d/%d

USER %s * 0 :%s

NICK %s

PASS %s

QUIT %s

PONG %s

NICK

PRIVMSG

JOIN

PRIVMSG %s :%s

JOIN %s

JOIN %s %s

MODE %s %s %s

MODE %s %s

__oxFrame.class__

shlwapi.dll

psapi.dll

SQLDisconnect

SQLFreeHandle

SQLAllocHandle

SQLExecDirect

SQLSetEnvAttr

SQLDriverConnect

odbc32.dll

ShellExecuteA

shell32.dll

mpr.dll

GetUdpTable

GetTcpTable

iphlpapi.dll

dnsapi.dll

netapi32.dll

Mozilla/4.0 (compatible)

InternetCrackUrlA

InternetOpenUrlA

FtpPutFileA

FtpGetFileA

HttpSendRequestA

HttpOpenRequestA

wininet.dll

ws2_32.dll

RegEnumKeyExA

advapi32.dll

user32.dll

kernel32.dll

%s!%s@%s

msnmsgrss.exe

*!*@fbi.gov

Windows UDP Control Center

next.hi5photos.mobi

hXXp://VVV.facebook.com

SOFTWARE\Microsoft\Windows\CurrentVersion\Run\

%s\%s

%s No %s thread found.

%s %s thread stopped. (%d thread(s) stopped.)

del "%s">nul

if exist "%s" goto Repeat

ping 0.0.0.0>nul

%s\removeMe%i%i%i%i.bat

192.168.25.227

msnmsgrss.exe_1264_rwx_00400000_0004C000:

.text

`.rdata

@.data

t1SSSSh

SSShX

r.getfile

r.new

r.update

r.upd4te

login

msn.msg

msn.stop

aim.msg

aim.stop

triton.msg

triton.stop

GetWindowsDirectoryA

KERNEL32.dll

VkKeyScanA

keybd_event

USER32.dll

MSVCRT.dll

_acmdln

RegCloseKey

RegCreateKeyExA

ADVAPI32.dll

ole32.dll

OLEAUT32.dll

%s Welcome.

%s Fail.

%s Spy: %s!%s@%s (PM: "%s")

%s Fail by: %s!%s@%s (Pass Tried: %s)

%s %s out.

%s out.

%s No user at:

%s Invalid slot:

%s Kill: threads

%s No threads

%s Killed thread:

%s Failed kt:

%s %s already running: .

%s Fail start %s, err: .

%s Status: %s. Box Uptime: %s, Bot Uptime: %s, Connected for: %s.

%s Bot installed on: %s.

Go fuck yourself %s.

MSN// Message & Zipfile sent to: %d contacts.

MSN// Message sent to: %d Contacts.

MSN// Sent Stats - Messages: %d :: Files: %d :: Message & Files: %d.

%s logged in.

Removed by: %s!%s@%s

%s Advapi.dll Failed

%s PStore.dll Failed.

%s Naim thd.

%s RuC.

%s mis param.

%s Failed to parse command.

%s Downloading URL: %s to: %s.

%s Downloading update from: %s to: %s.

%seraseme_%d%d%d%d%d.exe

%s Thread Disabled.

%s Thread Activated: Sending Message.

%s Bad URL or DNS Error, error:

%s Update failed: Error executing file: %s.

%s Process Finished: "%s", Total Running Time: %s.

%s Created process: "%s", PID:

%s Failed to create process: "%s", error:

%s Couldn't parse path, error:

%s File download: %.1fKB to: %s @ %.1fKB/sec.

%s Couldn't open file for writing: %s.

Ping Timeout? (%d-%d)%d/%d

USER %s * 0 :%s

NICK %s

PASS %s

QUIT %s

PONG %s

NICK

PRIVMSG

JOIN

PRIVMSG %s :%s

JOIN %s

JOIN %s %s

MODE %s %s %s

MODE %s %s

__oxFrame.class__

shlwapi.dll

psapi.dll

SQLDisconnect

SQLFreeHandle

SQLAllocHandle

SQLExecDirect

SQLSetEnvAttr

SQLDriverConnect

odbc32.dll

ShellExecuteA

shell32.dll

mpr.dll

GetUdpTable

GetTcpTable

iphlpapi.dll

dnsapi.dll

netapi32.dll

Mozilla/4.0 (compatible)

InternetCrackUrlA

InternetOpenUrlA

FtpPutFileA

FtpGetFileA

HttpSendRequestA

HttpOpenRequestA

wininet.dll

ws2_32.dll

RegEnumKeyExA

advapi32.dll

user32.dll

kernel32.dll

%s!%s@%s

msnmsgrss.exe

*!*@fbi.gov

Windows UDP Control Center

next.hi5photos.mobi

hXXp://VVV.facebook.com

SOFTWARE\Microsoft\Windows\CurrentVersion\Run\

%s\%s

%s No %s thread found.

%s %s thread stopped. (%d thread(s) stopped.)

del "%s">nul

if exist "%s" goto Repeat

ping 0.0.0.0>nul

%s\removeMe%i%i%i%i.bat

192.168.25.227

iexplore.exe_1404:

%?9-*09,*19}*09

.text

`.data

.rsrc

msvcrt.dll

KERNEL32.dll

NTDLL.DLL

USER32.dll

SHLWAPI.dll

SHDOCVW.dll

Software\Microsoft\Windows\CurrentVersion\Explorer\BrowseNewProcess

IE-X-X

rsabase.dll

System\CurrentControlSet\Control\Windows

dw15 -x -s %u

watson.microsoft.com

IEWatsonURL

%s -h %u

iedw.exe

Iexplore.XPExceptionFilter

jscript.DLL

mshtml.dll

mlang.dll

urlmon.dll

wininet.dll

shdocvw.DLL

browseui.DLL

comctl32.DLL

IEXPLORE.EXE

iexplore.pdb

ADVAPI32.dll

MsgWaitForMultipleObjects

IExplorer.EXE

IIIIIB(II<.fg>

7?_____ZZSSH%

)z.UUUUUUUU

,....Qym

````2```

{.QLQIIIKGKGKGKGKGKG

;33;33;0

8888880

8887080

browseui.dll

shdocvw.dll

6.00.2900.5512 (xpsp.080413-2105)

Windows

Operating System

6.00.2900.5512

Summary

Dynamic Analysis

Removals

Static Analysis

Network Activity

Map

Strings from Dumps