MD5: a68be1a696d205b0c7b9a698fabd8bb0
SHA1: 2ce75607cba984a5d7f3714220dac5883ea2b31c
SHA256: 45154c954edd9be4b5387d655840dfbd9df5904459e9c9a3c28e9931f890f9a3
SSDeep: 1536:/7weLt6EkI5YiMyM1/DWHLSzcig1lm1jW/nfIDVZbFr59s79uDN:/7hPYiMyUISzcvrFy3bz9soR
Size: 104448 bytes
File type: EXE
Platform: WIN32
Entropy: Probably Packed
PEID: UPolyXv05_v6
Company: AirInstaller
Created at: 1983-03-19 13:58:55
Analyzed on: WindowsXP SP3 32-bit

Summary:

Virus. A program that recursively replicates a possibly evolved copy of itself.

Payload

Process activity

The Virus creates the following process(es):

dwwin.exe:560
%original file name%.exe:1796

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

File activity

The process dwwin.exe:560 makes changes in the file system.
The Virus 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)
%Documents and Settings%\%current user%\Local Settings\Temp\AF58A.dmp (78368 bytes)

The process %original file name%.exe:1796 makes changes in the file system.
The Virus creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\ebd4_appcompat.txt (6214 bytes)
%Documents and Settings%\%current user%\Templates\excel.xls (666 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\yjzbyjaya.yarzbyq.qjb (601 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\rrrria.izj.aary (104 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\Reader9\qjyzbzbyq.qjb (601 bytes)
%WinDir%\xwrm.exe (601 bytes)

Registry activity

The process dwwin.exe:560 makes changes in the system registry.
The Virus creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "78 09 44 14 C8 07 95 C2 47 93 21 63 21 42 37 0B"

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

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

[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"

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

[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\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[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]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 1E 00 00 00 01 00 00 00 00 00 00 00"

[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"

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

Proxy settings are disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

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

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"
"ProxyServer"
"ProxyOverride"

The process %original file name%.exe:1796 makes changes in the system registry.
The Virus creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "B7 B1 F3 89 41 5B 3D E4 60 CD F0 74 D3 93 B0 3C"

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

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"x32x" = "%WinDir%\xwrm.exe"

The Virus deletes the following registry key(s):

[HKLM\SOFTWARE\Microsoft\PCHealth\ErrorReporting\DW]

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

[HKLM\SOFTWARE\Microsoft\PCHealth\ErrorReporting\DW]
"DWFileTreeRoot"

Dropped PE files

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

VersionInfo

No information is available.

PE Sections

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

URLs

No activity has been detected.

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Web Traffic was not found.

\xwrm.exe

%WinDir%\xwrm.exe

Software\Microsoft\Windows\CurrentVersion\Run

USER %s 8 * :%s

NICK %s

PONG %s

JOIN #england

PRIVMSG #england :.-:[X-Worm]:-.

irc.undernet.org

MAIL FROM:<%s>

RCPT TO:<%s>

--%s--

From:<%s>

To: %s

Subject:%s

boundary="%s"

X-Mailer: Microsoft Outlook Express 6.00.2800.1106

X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106

charset="windows-1255"

name= "%s%s"

Content-Disposition: attachment; filename="%s%s"

Support

No.reply

8.txtt:

8.htmt2

8.rtft*

8.doct"

8.bdxt

8.phpt

8.jspt

8.cgit

smtp

ws2_32.dll

ADVAPI32.DLL

RegOpenKeyExA

RegCloseKey

User32.dll

excel.xls

ia Player.lnk

Commander.lnk

8.exe

8.scrtt

8.avitJ

8.doctB

8.mp3t:

8.mpgt2

8.xlst*

8.jpgt"

8.zipt

8.isot

8.pdft

8.pptt

8.rart

c:\Documents and Settings\"%CurrentUserName%"\Templates\excel.xls

indows Media Player.lnk

or Repair Total Commander.lnk

34_all_incr.msp

5ed9567-aa58-4c8e-a8ea-3cad7c47ab03

SFC.DLL

WinExec

yjzbyjaya.yar

c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\yjzbyjaya.yarzbyq.qjb

ReadMe.exe

c:\%original file name%.exe

dc1e038769a18baac8d80357541396.exe

C:\DOCUME~1\"%CurrentUserName%"\LOCALS~1\Temp\rrrria.izj.aary

GetWindowsDirectoryA

FPTBAWDRF-INOCPANDANTIAMONN32SNOD3NPSSSMSSSCANZONEPROTMONIRWEBMIRCCKDOTROJSAFEJEDITRAYANDASPIDPLORNDLLTRENNSPLNSCHSYSTALERj

KERNEL32.dll

=Wy.Ef

hV.DK

OCmDz

-riv%S

5j3.bs

.Us)5

c:\Documents and Settings\"%CurrentUserName%"\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\Setup.exe

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. Terminate malicious process(es) (How to End a Process With the Task Manager):
   

   dwwin.exe:560
   %original file name%.exe:1796
   

2. Delete the original Virus file.
   
3. Delete or disinfect the following files created/modified by the Virus:
   

   %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\AF58A.dmp (78368 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\ebd4_appcompat.txt (6214 bytes)
   %Documents and Settings%\%current user%\Templates\excel.xls (666 bytes)
   %Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\yjzbyjaya.yarzbyq.qjb (601 bytes)
   %Documents and Settings%\%current user%\Local Settings\Temp\rrrria.izj.aary (104 bytes)
   %Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\Reader9\qjyzbzbyq.qjb (601 bytes)
   %WinDir%\xwrm.exe (601 bytes)

4. Delete the following value(s) in the autorun key (How to Work with System Registry):
   

   [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   "x32x" = "%WinDir%\xwrm.exe"

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