BKDR_EMBEDDED.GQ
VirTool:Win32/Injector.gen!BN (Microsoft); Generic Trojan.c (McAfee); Bloodhound.Malautoit.5 (Symantec); ARC:Embedded, [script.au3]:Packed.Win32.Krap.im (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Backdoor
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This backdoor 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
789,540 bytes
EXE
No
10 Feb 2012
Arrival Details
This backdoor 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 backdoor creates the following folders:
- %System Root%\Internet
- %System Root%\Internet\files
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)
Dropping Routine
This backdoor drops the following files:
- %System Root%\Internet\files\version.bin
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)
Other Details
This backdoor connects to the following possibly malicious URL:
- http://www.{BLOCKED}ligafm.com.br/new/winst.gif
- http://www.{BLOCKED}ligafm.com.br/new/desco.gif
- http://www.{BLOCKED}ligafm.com.br/new/winita.gif
This report is generated via an automated analysis system.
SOLUTION
9.200
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 this file
- %System Root%\Internet\files\version.bin
Step 3
Search and delete these folders
- %System Root%\Internet
- %System Root%\Internet\files
Step 4
Scan your computer with your Trend Micro product to delete files detected as BKDR_EMBEDDED.GQ. 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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