Trojan.Crypt.DW (BitDefender), Virus:Win32/Duel.A@mm (Microsoft), Worm.Win32.Luder.qlx (Kaspersky), LooksLike.Win32.Malware!B (v) (VIPRE), Win32.XWorm.1 (DrWeb), Trojan.Crypt.DW (B) (Emsisoft), Generic-FAGI!8500272477DB (McAfee), W32.Mixor (Symantec), Email-Worm.Win32.Brontok (Ikarus), Trojan.Crypt.DW (FSecure), I-Worm/Luder.A (AVG), Win32:Malware-gen (Avast), Mal_Xed-3 (TrendMicro), Virus.Win32.Duel.FD, GenericEmailWorm.YR, GenericIRCBot.YR (Lavasoft MAS)Behaviour: Trojan, 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: 8500272477db5dd743d9b6aa63ad7874
SHA1: 89f77a99f94b35579817ba4d09d3a5de8801bdab
SHA256: a38d1f7dc206d49232c3dd4def609a32bbc3857fe3f9d18d68ace80b76ec86a1
SSDeep: 768:zRXEJPhLkmqg3hSeqAdvAnPN8/pGxRz2:KJPuZgMAuDx
Size: 42496 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: UPolyXv05_v6
Company: WinterSoft
Created at: no data
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):
dwwin.exe:1568
%original file name%.exe:1268
File activity
The process dwwin.exe:1568 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\B553E.dmp (66689 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
The process %original file name%.exe:1268 makes changes in the file system.
The Virus creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Templates\excel.xls (666 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\rizyiz.ryrq.rai (42 bytes)
D:\ibyqabijr.azy (42 bytes)
%WinDir%\xwrm.exe (42 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\arizarrrz.iiirzqy.jaa (42 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\4a01_appcompat.txt (6214 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\Reader9\aqjjrrzqy.jaa (42 bytes)
Registry activity
The process dwwin.exe:1568 makes changes in the system registry.
The Virus creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "D4 F8 B1 67 F7 E1 46 7F CD 2E 48 B9 C6 1E 46 09"
[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 17 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:1268 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"
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"
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):
dwwin.exe:1568
%original file name%.exe:1268 - Delete the original Virus file.
- Delete or disinfect the following files created/modified by the Virus:
%Documents and Settings%\%current user%\Local Settings\Temp\B553E.dmp (66689 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Templates\excel.xls (666 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\rizyiz.ryrq.rai (42 bytes)
D:\ibyqabijr.azy (42 bytes)
%WinDir%\xwrm.exe (42 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\arizarrrz.iiirzqy.jaa (42 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\4a01_appcompat.txt (6214 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\Reader9\aqjjrrzqy.jaa (42 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"