HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.Win32.Rimecud.ad (v) (VIPRE), Trojan.Win32.Rimecud!IK (Emsisoft), Backdoor.Win32.Farfli.FD, Trojan.Win32.Rimecud.FD, GenericAutorunWorm.YR, BackdoorFarfli.YR, mzpefinder_pcap_file.YR (Lavasoft MAS)Behaviour: Trojan, Backdoor, Worm, WormAutorun
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: 12aa0bd805ce02ef5c501ecc1a130a01
SHA1: fae5f61c5c66c63379da65f3897a35a6ea4e1533
SHA256: 1b333e8ff2d7d0fc4bf827370dea34646aedf1b39a78e412bb1c4df6aa2f4dac
SSDeep: 1536:4Yu/ZyQ504dFEru5dUZ7Tsa29R8wHHZIhAGiILVl0iKy38Cy:4Fk5C lsaEvHG6lsp3a
Size: 162438 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: Armadillov171, MicrosoftVisualC, MicrosoftVisualCv50v60MFC, MicrosoftVisualC50, UPolyXv05_v6
Company: no certificate found
Created at: 2010-08-16 11:21:06
Summary: Backdoor. Malware that enables a remote control of victim's machine.
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 Backdoor's file once a user opens a drive's folder in Windows Explorer. |
Process activity
The Backdoor creates the following process(es):
12aa0bd805ce02ef5c501ecc1a130a01.exe:452
Reader_sl.exe:1064
wuauclt.exe:344
jusched.exe:1056
The Backdoor injects its code into the following process(es):
92979.exe:604
File activity
The process wuauclt.exe:344 makes changes in a file system.
The Backdoor creates and/or writes to the following file(s):
%WinDir%\SoftwareDistribution\DataStore\Logs\edb.chk (100 bytes)
%WinDir%\SoftwareDistribution\DataStore\Logs\edb.log (3576 bytes)
%WinDir%\SoftwareDistribution\DataStore\DataStore.edb (100 bytes)
The Backdoor deletes the following file(s):
%WinDir%\SoftwareDistribution\DataStore\Logs\tmp.edb (0 bytes)
The process jusched.exe:1056 makes changes in a file system.
The Backdoor creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\jusched.log (347 bytes)
Registry activity
The process 12aa0bd805ce02ef5c501ecc1a130a01.exe:452 makes changes in a system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "B0 AE 3A BC 9B 6C 6A 7C F4 7C D8 1B B4 24 E0 50"
The process Reader_sl.exe:1064 makes changes in a system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
The process 92979.exe:604 makes changes in a system registry.
The Backdoor creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "8B 34 EE 0F CF 95 BE 22 FC 31 7F F7 2B DA 55 A4"
To automatically run itself each time Windows is booted, the Backdoor adds the following link to its file to the system registry autorun key:
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"fuquehoj" = "%System%\hycoukyvas.exe"
Network activity (URLs)
| URL | IP |
|---|---|
| hxxp://kammundkocks.de/c_9000.exe (Malicious) | 212.227.52.30 |
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 Backdoor'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):
12aa0bd805ce02ef5c501ecc1a130a01.exe:452
wuauclt.exe:344 - Delete the original Backdoor file.
- Delete or disinfect the following files created/modified by the Backdoor:
%WinDir%\SoftwareDistribution\DataStore\Logs\edb.chk (100 bytes)
%WinDir%\SoftwareDistribution\DataStore\Logs\edb.log (3576 bytes)
%WinDir%\SoftwareDistribution\DataStore\DataStore.edb (100 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\jusched.log (347 bytes) - Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"fuquehoj" = "%System%\hycoukyvas.exe" - Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
- Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
- Reboot the computer.