Trojan.GenericKD.1489435 (BitDefender), Worm:Win32/Cridex (Microsoft), Trojan.Win32.Agent.ibjv (Kaspersky), Trojan.Win32.Generic!BT (VIPRE), Trojan.Necurs.97 (DrWeb), Trojan.GenericKD.1489435 (B) (Emsisoft), RDN/PWS-Zbot.agg!c (McAfee), W32.Cridex (Symantec), Worm.Win32.Cridex (Ikarus), Trojan.GenericKD.1489435 (FSecure), Agent4.BMMQ (AVG), Win32:Cridex-Y [Wrm] (Avast), WORM_CRIDEX.NF (TrendMicro), Worm.Win32.Cridex.FD, GenericInjector.YR (Lavasoft MAS)Behaviour: Trojan, Worm
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: 0a6771229dab475f6ca665022cf368b4
SHA1: a227bd945e4088e78332cfc155bcf09724a52365
SHA256: d73a5a66f6defc88012da2d8aaeb1e43c64f03fb390b0d30b2e31cc80592fc60
SSDeep: 3072:dkYKT8fQ2FDsXYV/S 64QAyr6 KAqvEDyVd09syeOqyel4uf:dvWUQYsqS3u5 MA9kx6uf
Size: 196608 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: BorlandDelphi30, UPolyXv05_v6
Company: no certificate found
Created at: 2013-10-10 10:43:41
Analyzed on: WindowsXP SP3 32-bit
Summary: Worm. A program that is primarily replicating on networks or removable drives.
Dynamic Analysis
Payload
No specific payload has been found.
Process activity
The Worm creates the following process(es):
KB00904859.exe:3384
%original file name%.exe:3340
The Worm injects its code into the following process(es):
ctfmon.exe:252
File activity
The process %original file name%.exe:3340 makes changes in the file system.
The Worm creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Application Data\KB00904859.exe (673 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\exp1.tmp.bat (189 bytes)
Registry activity
The process ctfmon.exe:252 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
The Worm deletes the following value(s) in system registry:
The Worm disables automatic startup of the application by deleting the following autorun value:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"internat.exe"
The process KB00904859.exe:3384 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
The process %original file name%.exe:3340 makes changes in the system registry.
The Worm creates and/or sets the following values in system registry:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
Network activity (URLs)
| URL | IP |
|---|---|
| hxxp://beliyvolkalak.ru/bgb8LDA/pPyyx/yLrJeD/ (Malicious) | 185.10.201.168 |
| buriymishka.ru | Unresolvable |
| deepandtouch.ru | Unresolvable |
| djubkafriend.ru | Unresolvable |
HOSTS file anomalies
No changes have been detected.
Rootkit activity
The Worm installs the following user-mode hooks in Secur32.dll:
InitializeSecurityContextA
UnsealMessage
SealMessage
InitializeSecurityContextW
DeleteSecurityContext
The Worm installs the following user-mode hooks in WS2_32.dll:
WSASend
recv
WSARecv
send
connect
closesocket
The Worm installs the following user-mode hooks in ntdll.dll:
LdrLoadDll
NtResumeThread
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*
- Scan a system with an anti-rootkit tool.
- Terminate malicious process(es) (How to End a Process With the Task Manager):
KB00904859.exe:3384
%original file name%.exe:3340 - Delete the original Worm file.
- Delete or disinfect the following files created/modified by the Worm:
%Documents and Settings%\%current user%\Application Data\KB00904859.exe (673 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\exp1.tmp.bat (189 bytes) - Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
- Reboot the computer.