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WORM_VOBFUS.SMCF

November 28, 2012
 Analysis by: Rhena Inocencio

 ALIASES:

Worm:Win32/Vobfus.MB (Microsoft), W32.Changeup (Symantec), W32/Autorun.worm.aaeb (McAfee)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Worm

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware,Propagates via removable drives, Propagates via social networking sites (Facebook)


live casino online has received multiple samples of this malware from multiple sources, including customer reports and internal sources. This malware has been noted to employ polymorphism in order to prevent early detection. It uses Facebook as a means to propagate. It also downloads information-stealing malware onto the affected system.

To get a one-glance comprehensive view of the behavior of this Worm, refer to the Threat Diagram shown below.

For the related story, you may read the following blog posts:

  • first before modifying your computer's registry.

    • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
      • From: ShowSuperHidden = "0"
        To: ShowSuperHidden = "1"

Step 7

Search and delete AUTORUN.INF files created by WORM_VOBFUS.SMCF that contain these strings

[ Learn More ]
?{garbage characters}
[autorun]
{garbage characters}
open={random}.eXE
{garbage characters}
ACTION={random number}
UseautopLAY=1
{garbage characters}

Step 8

Search and delete this file

[ Learn More ]
There may be some component files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden files and folders in the search result.
  • {drive letter}:\x.mpeg

Step 9

Restart in normal mode and scan your computer with your live casino online product for files detected as WORM_VOBFUS.SMCF. If the detected files have already been cleaned, deleted, or quarantined by your live casino online product, no further step is required. You may opt to simply delete the quarantined files. Please check this for more information.


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