Worm.Win32.Ainslot_VariantOfZeus_137539a6f8 – Adaware

Dynamic Analysis

Payload

Behaviour	Description
WormAutorun	A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Worm's file once a user opens a drive's folder in Windows Explorer.

Process activity

The Worm creates the following process(es):

svhost.exe:272
%original file name%.exe:944

The Worm injects its code into the following process(es):No processes have been created.

File activity

The process svhost.exe:272 makes changes in the file system.

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

%Documents and Settings%\%current user%\Local Settings\Temp\ZGJTFG0CPC.exe (3860 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\keylog (34 bytes)

The process %original file name%.exe:944 makes changes in the file system.

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

%WinDir%\Temp\svhost.exe (7547 bytes)
%System%\drivers\etc\hosts (193 bytes)

Registry activity

The process svhost.exe:272 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "27 4D ED DF 32 72 48 84 AA 44 61 C0 E4 A4 7B 70"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run]
"dsfsesf" = "C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\ZGJTFG0CPC.exe"

[HKCU\Software\VB and VBA Program Settings\INSTALL\DATE]
"DY4E2I88KB" = "June 12, 2014"

[HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components\{BFA53BDE-F52F-BEA1-8496-00FF1BD9CDBA}]
"StubPath" = "C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\ZGJTFG0CPC.exe"

[HKCU\Software\Microsoft\Active Setup\Installed Components\{BFA53BDE-F52F-BEA1-8496-00FF1BD9CDBA}]
"StubPath" = "C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\ZGJTFG0CPC.exe"

[HKCU\Software\VB and VBA Program Settings\SrvID\ID]
"DY4E2I88KB" = "EscV2"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"dsfsesf" = "C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\ZGJTFG0CPC.exe"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"dsfsesf" = "C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\ZGJTFG0CPC.exe"

The process %original file name%.exe:944 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "C9 4B 20 1B E8 E3 CB DE 52 8B 8C 4E 00 71 8C 90"

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

Dropped PE files

MD5	File path
67f5238229333c061092f5a32e8c2ee1	c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Temp\ZGJTFG0CPC.exe
67f5238229333c061092f5a32e8c2ee1	c:\WINDOWS\Temp\svhost.exe

HOSTS file anomalies

The Worm modifies "%System%\drivers\etc\hosts" file which is used to translate DNS entries to IP addresses. The modified file is 193 bytes in size. The following strings are added to the hosts file listed below:

127.0.0.1	virustotal.com
127.0.0.1	vscan.novirusthanks.org
127.0.0.1	irusscan.jotti.org
127.0.0.1	virscan.org
127.0.0.1	www.virus-trap.org

Rootkit activity

No anomalies have been detected.

Propagation

A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Worm's file once a user opens a drive's folder in Windows Explorer.

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):
svhost.exe:272
%original file name%.exe:944
Delete the original Worm file.
Delete or disinfect the following files created/modified by the Worm:
%Documents and Settings%\%current user%\Local Settings\Temp\ZGJTFG0CPC.exe (3860 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\keylog (34 bytes)
%WinDir%\Temp\svhost.exe (7547 bytes)
%System%\drivers\etc\hosts (193 bytes)
Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"dsfsesf" = "C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\ZGJTFG0CPC.exe"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"dsfsesf" = "C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\ZGJTFG0CPC.exe"
Restore the original content of the HOSTS file (%System%\drivers\etc\hosts): 127.0.0.1 localhost
Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.

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

Static Analysis

VersionInfo

Company Name: Mozilla Corporation
Product Name: Firefox
Product Version: 11.4.1.4
Legal Copyright: (c)Firefox and Mozilla Developers, according to the MPL 1.1/GPL 2.0/LGPL 2.1 licenses, as applicable.
Legal Trademarks: Firefox is a Trademark of The Mozilla Foundation.
Original Filename: file.exe
Internal Name: file.exe
File Version: 11.4.1.4
File Description: Firefox
Comments: Firefox
Language: English (United States)

Company Name: Mozilla CorporationProduct Name: FirefoxProduct Version: 11.4.1.4Legal Copyright: (c)Firefox and Mozilla Developers, according to the MPL 1.1/GPL 2.0/LGPL 2.1 licenses, as applicable.Legal Trademarks: Firefox is a Trademark of The Mozilla Foundation.Original Filename: file.exeInternal Name: file.exeFile Version: 11.4.1.4File Description: FirefoxComments: FirefoxLanguage: English (United States)

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.rsrc	8192	101184	101376	3.29934	4dd64aa99c4b3f732945d517d2b26df6
.text	114688	977940	978432	5.40456	579b94d2c8f1fcf3bec2b43694730e97
.reloc	1097728	12	512	0.084755	f7413165163036457a696981a65233df

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 Worm connects to the servers at the folowing location(s):

Strings from Dumps

svhost.exe_272:

.text

`.data

.rsrc

MSVBVM60.DLL

bss_server.usrReverseRelay

tmrWebHide

bss_server.Socket

bss_server.usrRelay

mswinsck.ocx

MSWinsockLib.Winsock

ieframe.dll

SHDocVwCtl.WebBrowser

WebBrowser

modLaunchWeb

%Program Files% (x86)\Microsoft Visual Studio\VB98\VB6.OLB

C:\Windows\SysWOW64\ieframe.dll

winmm.dll

user32.dll

advapi32.dll

shell32.dll

kernel32.dll

avicap32.dll

advpack.dll

GetAsyncKeyState

SetWindowsHookExA

UnhookWindowsHookEx

GetKeyboardLayout

GetKeyboardState

GetKeyState

PSAPI.DLL

SHFileOperationA

CreatePipe

CHAT_ADDMSG

GetTcpTable

ExitWindowsEx

EnumWindows

WinInet.dll

DeleteUrlCacheEntryA

urlmon

URLDownloadToFileA

ShellExecuteA

keybd_event

VBA6.DLL

C:\Windows\SysWow64\msvbvm60.dll\3

ws2_32.dll

AddMsg

GdiplusShutdown

RemotePort

LocalPort

WSOCK32.DLL

RegCloseKey

RegOpenKeyExA

ntdll.dll

*wC:\Windows\SysWOW64\ieframe.oca

UDPSocket

J%Program Files% (x86)\Microsoft Visual Studio\VB98\vbc14663.oca

tmrTCP

tmrUDP

UDPFlood

ole32.dll

crypt32.dll

oleaut32.dll

RegOpenKeyA

FindNextUrlCacheEntryA

FindFirstUrlCacheEntryA

imgLoginPressed

imgLogin

txtPassword

RegCreateKeyA

RegDeleteKeyA

RegEnumKeyExA

gdi32.dll

olepro32.dll

InternetOpenUrlA

FtpGetFileA

FtpPutFileA

FtpSetCurrentDirectoryA

FtpGetCurrentDirectoryA

FtpOpenFileA

FtpGetDirectory

Http_DownloadFile

FtpGetFileSize

FtpDeleteFileA

FtpCreateDirectoryA

FtpRemoveDirectoryA

FtpRenameFileA

FtpDownload

FtpUpload

cmdShowfiles

msvbvm60.dll

?8??8??8??8??8?

.QX0WPp

uMsg

strMsg

MsgNum

AllMsgs

lngPort

URL_TARGET

Port

Password

WebURL

Returns/Sets the port to be connected to on the remote computer

Returns/Sets the port used on the local computer

Binds socket to specific port and adapter

Occurs after a send operation has completed

*\AC:\Users\Admin\Desktop_old\Blackshades project\Blackshades NET\server\server.vbp

2c49f800-c2dd-11cf-9ad6-0080c7e7b78d

Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1) Gecko/20090612 Firefox/3.5

{00020404-0000-0000-C000-000000000046}

\nir_cmd.bss speak text

\nir_cmd.bss setsysvolume 65535

\nir_cmd.bss mutesysvolume 1

\nir_cmd.bss mutesysvolume 0

\nir_cmd.bss screensaver

\nir_cmd.bss monitor off

\nir_cmd.bss monitor on

PORT

TRANSFERPORT

SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\

Keylog

Wscript.Shell

HKEY_CLASSES_ROOT\HTTP\shell\open\command\

\winlogon.exe

iexplore.exe

http://www.facebook.com/?ref=home

http://www.facebook.com

ADVAPI32.dll

Windows Firewall/Internet Connection Sharing (ICS)

WebCamCapture

\Vuze\Azureus.exe

\LimeWire\LimeWire.exe

\uTorrent\uTorrent.exe

\uTorrent\uTorrent.exe /HIDE

\BitTorrent\bittorrent.exe

\MSWINSCK.OCX

\cmd.exe

\data.dat

\steam\steam.exe

nkey

dkey

regsvr32.exe

\pws_mail.bss

\pws_mess.bss

\pws_cdk.bss

\pws_ff.bss

\pws_chro.bss

\nir_cmd.bss

cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f

cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "

:*:Enabled:Windows Messanger" /f

winmgmts:{impersonationLevel=Impersonate}!\\.\root\cimv2

00000000

winmgmts:\\.\root\cimv2

Select * from Win32_Keyboard

api.ipinfodb.com

GET /v2/ip_query.php?key=

&timezone=off HTTP/1.1

Host: api.ipinfodb.com

GET /v2/ip_query_country.php?key=

Portable

winmgmts:\\.\root\SecurityCenter

\wallpaper.bmp

\wallpaper.jpg

WScript.Shell

WinServer 2003, Web Edition

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProductName

__oxFrame.class__

Scripting.FileSystemObject

Autorun.ini

{557CF401-1A04-11D3-9A73-0000F81EF32E}

{1D5BE4B5-FA4A-452D-9CDD-5DB35105E7EB}

Address family not supported by protocol family.

Operation already in progress.

Operation now in progress.

Socket operation on nonsocket.

Operation not supported.

Protocol family not supported.

Protocol not supported.

Socket type not supported.

Winsock.dll version out of range.

CSocketMaster.SocketExists

CSocketMaster.PostSocket

CSocketMaster.ConnectToIP

CSocketMaster.ResolveIfHostname

CSocketMaster.SendBufferedDataUDP

CSocketMaster.SendBufferedData

/stext mess.dat

abe2869f-9b47-4cd9-a358-c22904dba7f7

\mess.dat

/stext mail.dat

\mail.dat

/stext ffpw.dat

\ffpw.dat

Web Site

Password

/stext chro.dat

\chro.dat

Action URL

SOFTWARE\MICROSOFT\Windows NT\CurrentVersion

Windows

SOFTWARE\Classes\Applications\iexplore.exe\shell\open\command

http\shell\open\command

127.0.0.1

\dump.txt

\uTorrent\uTorrent.exe /DIRECTORY

255.255.255.255

finalizarprocessoportas

CONNECT %s:%i HTTP/1.0

SOFTWARE\Classes\http\shell\open\command

Software\Classes\http\shell\open\command

Software\Microsoft\Windows NT\CurrentVersion\SystemRestore

code.is.a.winner

Software\Microsoft\Windows\CurrentVersion\Uninstall\eMule

SOFTWARE\MICROSOFT\Windows NT\CurrentVersion\DigitalProductId

bps1.exe

bhookpl.dll

bnfa.exe

drvloadn.dll

drvloadx.dll

VNCHooks.dll

xr4tdwa.exe

shutdown.exe

TCnRawKeyBoard

HuntHTTPDownload

autorun.inf

https://onlineeast#.bankofamerica.com

winlogon.exe

moz_logins

WEBCAMLIVE

explorer.exe

SOFTWARE\Microsoft\Windows\CurrentVersion\Run

Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run

SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon

\system32\userinit.exe,

notepad.exe

\system32\userinit.exe

steam.exe

hl.exe

http:///

@*\AC:\Users\Admin\Desktop_old\Blackshades project\Blackshades NET\server\server.vbp

Summary

Dynamic Analysis

Removals

Static Analysis

Network Activity

Map

Strings from Dumps