Susp_Dropper (Kaspersky), LooksLike.Win32.Malware!B (v) (VIPRE), Email-Worm.Win32.Brontok!IK (Emsisoft), Virus.Win32.Duel.FD, GenericEmailWorm.YR, GenericIRCBot.YR (Lavasoft MAS)Behaviour: Worm, Email-Worm, EmailWorm, Virus, IRCBot
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: dd5fdbaa0943ac2701da752d487cab53
SHA1: f71b526d6a08b56af529a5da0912ca5f564bfb02
SHA256: 8cb292006a9975e9aa89fdf69167928982e2a191fc0394651594d2466deab006
SSDeep: 768:y0UlGd7pIDdKZNaiptVn jmd4s8ZumMVh1yXuf0k2:RUla7sWnIjmR8ZUVf
Size: 50176 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2007-10-14 23:59:17
Summary: Virus. A program that recursively replicates a possibly evolved copy of itself.
Dynamic Analysis
Payload
| Behaviour | Description |
|---|---|
| EmailWorm | Worm can send e-mails. |
| IRCBot | A bot can communicate with command and control servers via IRC channel. |
Process activity
The Virus creates the following process(es):
yrabrrara.rqq:976
yrabrrara.rqq:1760
%original file name%.exe:1344
File activity
The process yrabrrara.rqq:976 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\riairj.ajy.ara (50176 bytes)
The process yrabrrara.rqq:1760 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\iirira.jya.ara (50176 bytes)
The process %original file name%.exe:1344 makes changes in the file system.
The Virus creates and/or writes to the following file(s):
%Program Files%\MSN Gaming Zone\Windows\jrrzqyjaa.ari (50176 bytes)
%Program Files%\WinPcap\ibyqyajqi.aqjya (50176 bytes)
%WinDir%\Installer\{350C9419-3D7C-4EE8-BAA9-00BCB3D54227}\ibyqyajqi.aqj (50176 bytes)
%Program Files%\Windows Media Player\ibyqyajqi.aqj (50176 bytes)
%Program Files%\Windows NT\qabijrazy.iya (50176 bytes)
%Program Files%\Wireshark\zarrrziii.rrq (50176 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\jyzbzbyqq.jby (50176 bytes)
%Program Files%\NetMeeting\ibyqyajqi.aqjy.arai.aqj (50176 bytes)
%WinDir%\network diagnostic\jrrzqyjaa.ari (50176 bytes)
C:\Perl\bin\zarrrziii.rrq (50176 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\ibyqyajqi.aqj (50176 bytes)
%WinDir%\Microsoft.NET\Framework\zarrrziii.rrq (50176 bytes)
%Program Files%\Windows Media Player\briazzzar.iby (50176 bytes)
%WinDir%\jyzbzbyqq.jby (50176 bytes)
%Program Files%\NetMeeting\briazzzar.ibyy.arai.aqj (50176 bytes)
%Program Files%\Common Files\Microsoft Shared\MSInfo\jzbyjayay.ara (50176 bytes)
%Program Files%\Windows Media Player\qabijrazy.iya (50176 bytes)
%Program Files%\Windows Media Player\jzbyjayay.ara (50176 bytes)
D:\ibyqyajqi.aqj (50176 bytes)
%WinDir%\zarrrziii.rrq (50176 bytes)
%Program Files%\Windows NT\Accessories\briazzzar.ibyq.jby (50176 bytes)
%Program Files%\Outlook Express\jzbyjayay.arai.aqj (50176 bytes)
%Program Files%\Wireshark\briazzzar.iby (50176 bytes)
%Program Files%\Windows NT\Pinball\jzbyjayay.arazbyqq.jby (50176 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\jzbyjayay.ara (50176 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\yrabrrara.rqq (50176 bytes)
%Program Files%\Outlook Express\jyzbzbyqq.jbyi.aqj (50176 bytes)
%WinDir%\pchealth\helpctr\binaries\briazzzar.iby (50176 bytes)
%WinDir%\yrabrrara.rqq (50176 bytes)
%Program Files%\Outlook Express\zarrrziii.rrqi.aqj (50176 bytes)
%Program Files%\MSN Gaming Zone\Windows\zarrrziii.rrq (50176 bytes)
%Program Files%\Common Files\Microsoft Shared\DW\briazzzar.iby (50176 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\briazzzar.iby (50176 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\jrrzqyjaa.ari (50176 bytes)
%Program Files%\MSN Gaming Zone\Windows\yrabrrara.rqq (50176 bytes)
%Program Files%\Outlook Express\jrrzqyjaa.arii.aqj (50176 bytes)
C:\Perl\bin\yrabrrara.rqq (50176 bytes)
%WinDir%\xwrm.exe (50176 bytes)
%Program Files%\Wireshark\jyzbzbyqq.jby (50176 bytes)
%Program Files%\Wireshark\qabijrazy.iya (50176 bytes)
C:\Perl\bin\jyzbzbyqq.jby (50176 bytes)
%Program Files%\Wireshark\jzbyjayay.ara (50176 bytes)
C:\Perl\bin\jzbyjayay.ara (50176 bytes)
%Program Files%\Wireshark\jrrzqyjaa.arijy.arai.aqj (50176 bytes)
%Program Files%\NetMeeting\qabijrazy.iyay.arai.aqj (50176 bytes)
%Program Files%\Common Files\Adobe\Updater6\jyzbzbyqq.jby (50176 bytes)
%WinDir%\inf\zarrrziii.rrq (50176 bytes)
%Program Files%\Common Files\Adobe\ARM\1.0\jrrzqyjaa.ari (50176 bytes)
%Program Files%\Adobe\Reader 9.0\Setup Files\{AC76BA86-7AD7-1049-7B44-A93000000001}\yrabrrara.rqq (50176 bytes)
C:\Perl\bin\briazzzar.iby (50176 bytes)
%WinDir%\ehome\jrrzqyjaa.ari (50176 bytes)
%Program Files%\Common Files\Microsoft Shared\DW\qabijrazy.iya (50176 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\azbzqb.yba.ara (50688 bytes)
%Program Files%\MSN Gaming Zone\Windows\ibyqyajqi.aqj (50176 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\zarrrziii.rrq (50176 bytes)
%WinDir%\pchealth\helpctr\binaries\jzbyjayay.ara (50176 bytes)
Registry activity
The process %original file name%.exe:1344 makes changes in the system registry.
The Virus creates and/or sets the following values in system registry:
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"
Network activity (URLs)
No activity has been detected.
HOSTS file anomalies
No changes have been detected.
Rootkit activity
No anomalies have been detected.
Propagation
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):
yrabrrara.rqq:976
yrabrrara.rqq:1760
%original file name%.exe:1344 - Delete the original Virus file.
- Delete or disinfect the following files created/modified by the Virus:
%Documents and Settings%\%current user%\Local Settings\Temp\riairj.ajy.ara (50176 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\iirira.jya.ara (50176 bytes)
%Program Files%\MSN Gaming Zone\Windows\jrrzqyjaa.ari (50176 bytes)
%Program Files%\WinPcap\ibyqyajqi.aqjya (50176 bytes)
%WinDir%\Installer\{350C9419-3D7C-4EE8-BAA9-00BCB3D54227}\ibyqyajqi.aqj (50176 bytes)
%Program Files%\Windows Media Player\ibyqyajqi.aqj (50176 bytes)
%Program Files%\Windows NT\qabijrazy.iya (50176 bytes)
%Program Files%\Wireshark\zarrrziii.rrq (50176 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\jyzbzbyqq.jby (50176 bytes)
%Program Files%\NetMeeting\ibyqyajqi.aqjy.arai.aqj (50176 bytes)
%WinDir%\network diagnostic\jrrzqyjaa.ari (50176 bytes)
C:\Perl\bin\zarrrziii.rrq (50176 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\ibyqyajqi.aqj (50176 bytes)
%WinDir%\Microsoft.NET\Framework\zarrrziii.rrq (50176 bytes)
%Program Files%\Windows Media Player\briazzzar.iby (50176 bytes)
%WinDir%\jyzbzbyqq.jby (50176 bytes)
%Program Files%\NetMeeting\briazzzar.ibyy.arai.aqj (50176 bytes)
%Program Files%\Common Files\Microsoft Shared\MSInfo\jzbyjayay.ara (50176 bytes)
%Program Files%\Windows Media Player\qabijrazy.iya (50176 bytes)
%Program Files%\Windows Media Player\jzbyjayay.ara (50176 bytes)
D:\ibyqyajqi.aqj (50176 bytes)
%WinDir%\zarrrziii.rrq (50176 bytes)
%Program Files%\Windows NT\Accessories\briazzzar.ibyq.jby (50176 bytes)
%Program Files%\Outlook Express\jzbyjayay.arai.aqj (50176 bytes)
%Program Files%\Wireshark\briazzzar.iby (50176 bytes)
%Program Files%\Windows NT\Pinball\jzbyjayay.arazbyqq.jby (50176 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\jzbyjayay.ara (50176 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\yrabrrara.rqq (50176 bytes)
%Program Files%\Outlook Express\jyzbzbyqq.jbyi.aqj (50176 bytes)
%WinDir%\pchealth\helpctr\binaries\briazzzar.iby (50176 bytes)
%WinDir%\yrabrrara.rqq (50176 bytes)
%Program Files%\Outlook Express\zarrrziii.rrqi.aqj (50176 bytes)
%Program Files%\MSN Gaming Zone\Windows\zarrrziii.rrq (50176 bytes)
%Program Files%\Common Files\Microsoft Shared\DW\briazzzar.iby (50176 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\briazzzar.iby (50176 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\jrrzqyjaa.ari (50176 bytes)
%Program Files%\MSN Gaming Zone\Windows\yrabrrara.rqq (50176 bytes)
%Program Files%\Outlook Express\jrrzqyjaa.arii.aqj (50176 bytes)
C:\Perl\bin\yrabrrara.rqq (50176 bytes)
%WinDir%\xwrm.exe (50176 bytes)
%Program Files%\Wireshark\jyzbzbyqq.jby (50176 bytes)
%Program Files%\Wireshark\qabijrazy.iya (50176 bytes)
C:\Perl\bin\jyzbzbyqq.jby (50176 bytes)
%Program Files%\Wireshark\jzbyjayay.ara (50176 bytes)
C:\Perl\bin\jzbyjayay.ara (50176 bytes)
%Program Files%\Wireshark\jrrzqyjaa.arijy.arai.aqj (50176 bytes)
%Program Files%\NetMeeting\qabijrazy.iyay.arai.aqj (50176 bytes)
%Program Files%\Common Files\Adobe\Updater6\jyzbzbyqq.jby (50176 bytes)
%WinDir%\inf\zarrrziii.rrq (50176 bytes)
%Program Files%\Common Files\Adobe\ARM\1.0\jrrzqyjaa.ari (50176 bytes)
%Program Files%\Adobe\Reader 9.0\Setup Files\{AC76BA86-7AD7-1049-7B44-A93000000001}\yrabrrara.rqq (50176 bytes)
C:\Perl\bin\briazzzar.iby (50176 bytes)
%WinDir%\ehome\jrrzqyjaa.ari (50176 bytes)
%Program Files%\Common Files\Microsoft Shared\DW\qabijrazy.iya (50176 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\azbzqb.yba.ara (50688 bytes)
%Program Files%\MSN Gaming Zone\Windows\ibyqyajqi.aqj (50176 bytes)
%Program Files%\Adobe\Reader 9.0\Reader\zarrrziii.rrq (50176 bytes)
%WinDir%\pchealth\helpctr\binaries\jzbyjayay.ara (50176 bytes) - 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"