PE_LUDER.A

Malware type: File infector

Aliases: W32.Mixor!inf(Symantec), W32/Dref-L(Sophos), Email-Worm.Win32.Luder.a(Kaspersky), W32/Luder.A(Avira), W32/Tagen.B(F-Prot), W32/Duel(McAfee)

In the wild: Yes

Destructive: No

Language: English

Platform: Windows 98, ME, NT, 2000, XP, Server 2003

Encrypted: No

Overall risk rating:

Reported infections:

Damage potential:

Medium

Distribution potential:

Low

Infection Channel 1 : Infects files


Description: 

This is Trend Micro's detection for all .EXE and .SCR files infected by PE_LUDER.A-O.

The infected files are usually located in the same folder as {random}.duel, which is detected by Trend Micro as PE_LUDER.A-O.

Execution of the infected files triggers the execution of {random}.duel, thus, machines infected by PE_LUDER.A are also infected by PE_LUDER.A-O.

For additional information about this threat, see:

Description created: Apr. 14, 2006 1:57:40 AM GMT -0800


TECHNICAL DETAILS


File type: PE

Memory resident:  No

Size of malware: 155 Bytes

Initial samples received on: Apr 12, 2006

Related toPE_LUDER.A-O

Payload 1: Executes PE_LUDER.A-O

Details:

This is Trend Micro's detection for all .EXE and .SCR files infected by PE_LUDER.A-O.

The infected files are usually located in the same folder as {random}.duel, which is detected by Trend Micro as PE_LUDER.A-O.

Execution of the infected files triggers the execution of {random}.duel, thus, machines infected by PE_LUDER.A are also infected by PE_LUDER.A-O.

This file infector runs on Windows 98, ME, NT, 2000, XP, and Server 2003.

Analysis By: Luis Antonio P. Magisa

Revision History:

 
Nov 17, 2006 - Inserted Automatic Removal Instructions

SOLUTION


Minimum scan engine version needed: 7.500

Pattern file needed: 3.923.00

Pattern release date: Nov 14, 2006


Important note: The "Minimum scan engine" refers to the earliest Trend Micro scan engine version guaranteed to detect this threat. However, Trend Micro strongly recommends that you update to the latest version in order to get comprehensive protection. Download the latest scan engine here.

Solution:

Note: To fully remove all associated malware, perform the clean solution for PE_LUDER.A-O.

AUTOMATIC REMOVAL INSTRUCTIONS

MANUAL REMOVAL INSTRUCTIONS

Important Windows ME/XP Cleaning Instructions

Users running Windows ME and XP must disable System Restore to allow full scanning of infected computers.

Users running other Windows versions can proceed with the succeeding solution set(s).

Running Trend Micro Antivirus

If you are currently running in safe mode, please restart your computer normally before performing the following solution.

Scan your computer with Trend Micro antivirus and clean files detected as PE_LUDER.A. To do this, Trend Micro customers must download the latest virus pattern file and scan their computer. Other Internet users can use HouseCall, the Trend Micro online virus scanner.




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