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PE_INDUC.BU

November 29, 2012
 ALIASES:

Virus:Win32/Frayemet.D (Microsoft); Generic Malware.cq (McAfee); W32.Induc.B (Symantec); Virus.Win32.Induc.lg (Kaspersky); Virus.Win32.Induc.c (v) (Sunbelt); Trojan.Generic.6897867 (FSecure)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 REPORTED INFECTION:

  • Threat Type: File infector

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This file infector 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

File Size:

1,174,099 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

23 Apr 2012

Arrival Details

This file infector arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This file infector creates the following folders:

  • %User Profile%\Application Data\APMV

(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)

Other System Modifications

This file infector adds the following registry entries:

HKEY_CLASSES_ROOT
ShockwaveFlash.ShockwaveFlash\shell\open\command = "%System Root%\~.exe %1"

HKEY_CLASSES_ROOT
ShockwaveFlash.ShockwaveFlash\DefaultIcon = "%System Root%\~.exe,1"

HKEY_CLASSES_ROOT
.swf = "ShockwaveFlash.ShockwaveFlash"

HKEY_CLASSES_ROOT
.spl = "ShockwaveFlash.ShockwaveFlash"

Dropping Routine

This file infector drops the following files:

  • %User Profile%\APMV\APMV.exe
  • %User Startup%\APMV.lnk
  • ~.exe
  • ~.lnk

(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %User Startup% is the current user's Startup folder, which is usually C:\Windows\Profiles\{user name}\Start Menu\Programs\Startup on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Start Menu\Programs\Startup on Windows NT, and C:\Documents and Settings\{User name}\Start Menu\Programs\Startup.)

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

9.200

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

Delete this 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_CLASSES_ROOT
    • ShockwaveFlash.ShockwaveFlash\shell\open\command = "%System Root%\~.exe %1"
  • In HKEY_CLASSES_ROOT
    • ShockwaveFlash.ShockwaveFlash\DefaultIcon = "%System Root%\~.exe,1"
  • In HKEY_CLASSES_ROOT
    • .swf = "ShockwaveFlash.ShockwaveFlash"
  • In HKEY_CLASSES_ROOT
    • .spl = "ShockwaveFlash.ShockwaveFlash"

Step 3

Search and delete these components

[ Learn More ]
There may be some components 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.
  • %User Profile%\APMV\APMV.exe
  • %User Startup%\APMV.lnk
  • ~.exe
  • ~.lnk

Step 4

Search and delete this folder

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.
  • %User Profile%\Application Data\APMV

Step 5

Scan your computer with your Trend Micro product to clean files detected as PE_INDUC.BU. 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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