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TROJ_FAKEAV.IBH

April 03, 2013
 ALIASES:

Rogue:Win32/Winwebsec (Microsoft); FakeAlert-SecurityTool.es (McAfee); Trojan.FakeAV (Symantec); Trojan-FakeAV.Win32.SecurityShield.dxt (Kaspersky); LiveSecurityPlatinum (Sunbelt); Trojan horse Cryptic.EDB (AVG)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


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

It deletes itself after execution.

  TECHNICAL DETAILS

File Size:

401,920 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

03 Apr 2013

Arrival Details

This Trojan 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 Trojan creates the following folders:

  • %User Profile%\Application Data\529C50B4000DF75B69AD14892830AC72

(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.)

Dropping Routine

This Trojan drops the following files:

  • %User Profile%\529C50B4000DF75B69AD14892830AC72\529C50B4000DF75B69AD14892830AC72
  • %User Profile%\529C50B4000DF75B69AD14892830AC72\529C50B4000DF75B69AD14892830AC72.exe

(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 Details

This Trojan connects to the following possibly malicious URL:

  • http://{BLOCKED}.173.15:65243/api/urls/?ts=52d4e54f&affid=14423
  • http://{BLOCKED}.173.15:65243/api/stats/install/?{random characters}

It deletes itself after execution.

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

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

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%\529C50B4000DF75B69AD14892830AC72\529C50B4000DF75B69AD14892830AC72
  • %User Profile%\529C50B4000DF75B69AD14892830AC72\529C50B4000DF75B69AD14892830AC72.exe

Step 3

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\529C50B4000DF75B69AD14892830AC72

Step 4

Scan your computer with your Trend Micro product to delete files detected as TROJ_FAKEAV.IBH. 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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