Analysis by: JasperM
 PLATFORM:

Windows 2000, XP, Server 2003

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

  • Threat Type: Worm

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel: Propagates via removable drives

This worm arrives as a file that exports the functions of other malware/grayware.

It may be injected into processes running in memory.

  TECHNICAL DETAILS

File Size: 87,040 bytes
File Type: PE
Memory Resident: No
Initial Samples Received Date: 27 Apr 2009
Payload: Drops files

Arrival Details

This worm arrives as a file that exports the functions of other malware/grayware.

Installation

This worm may be injected into processes running in memory.

Other System Modifications

This worm modifies the following registry entries to hide files with Hidden attributes:

HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\
Windows\CURRENTVERSION\Explorer\
Advanced
Hidden = 2

(Note: The default value data of the said registry entry is 1.)

HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\
Windows\CURRENTVERSION\Explorer\
Advanced
ShowSuperHidden = 0

(Note: The default value data of the said registry entry is 1.)

HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\
Windows\CURRENTVERSION\Explorer\
Advanced\Folder\Hidden\
SHOWALL
CheckedValue = 0

(Note: The default value data of the said registry entry is 1.)

Other Details

Based on analysis of the codes, it has the following capabilities:

  • Functions as a DLL component of a WORM_ONLINEG variant
  • Drops an AUTORUN.INF file in removable drives to automatically execute the main WORM_ONLINEG component

  SOLUTION

Minimum Scan Engine: 8.900
VSAPI OPR PATTERN File: 6.127.00
VSAPI OPR PATTERN Date: 13 May 2009

Step 1

For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Scan your computer with your Trend Micro product and note files detected as WORM_ONLINEG.JXD

Step 3

Restart in Safe Mode

[ Learn More ]

Step 4

Restore this modified registry value

[ Learn More ]

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\Windows\CURRENTVERSION\Explorer\Advanced
    • From: Hidden=2
      To: Hidden=1
  • In HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\Windows\CURRENTVERSION\Explorer\Advanced
    • From: ShowSuperHidden=0
      To: ShowSuperHidden=1
  • In HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\Windows\CURRENTVERSION\Explorer\Advanced\Folder\Hidden\SHOWALL
    • From: CheckedValue=0
      To: CheckedValue=1


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