WORM_VOBFUS.AJB
Worm:Win32/Vobfus.QJ (Microsoft); Trojan.Win32.Jorik.Vobfus.gvmt (Kaspersky); Worm.Win32.Vobfus (fs) (Sunbelt); Trojan horse Dropper.Generic8.AUFS (AVG)
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Worm
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
TECHNICAL DETAILS
138,240 bytes
EXE
No
12 Jun 2013
Arrival Details
This worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Other System Modifications
This worm adds the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
DirectInput\MostRecentApplication
Version = "{random values}"
HKEY_CURRENT_USER\Software\Microsoft\
DirectInput\MostRecentApplication
Name = "{malware file name}"
HKEY_CURRENT_USER\Software\Microsoft\
DirectInput\MostRecentApplication
Id = "{malware file name}51aeb8f500021c00"
HKEY_CURRENT_USER\Software\Microsoft\
DirectInput\MostRecentApplication
MostRecentStart = "{random values}"
This report is generated via an automated analysis system.
SOLUTION
9.300
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Delete this registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\Microsoft\DirectInput\MostRecentApplication
- Version = "{random values}"
- In HKEY_CURRENT_USER\Software\Microsoft\DirectInput\MostRecentApplication
- Name = "{malware file name}"
- In HKEY_CURRENT_USER\Software\Microsoft\DirectInput\MostRecentApplication
- Id = "{malware file name}51aeb8f500021c00"
- In HKEY_CURRENT_USER\Software\Microsoft\DirectInput\MostRecentApplication
- MostRecentStart = "{random values}"
Step 3
Scan your computer with your Trend Micro product to delete files detected as WORM_VOBFUS.AJB. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
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