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BKDR_CYCBOT.AAL

January 04, 2013
 ALIASES:

Backdoor:Win32/Cycbot.G, Backdoor:Win32/Cycbot.G (Microsoft); BackDoor-EXI.gen.ag (McAfee); Trojan.Win32.Generic!BT (Sunbelt); Gen:Variant.TDss.71 (FSecure)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • 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

File Size:

185,344 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

16 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:

  • %Program Files%\D0FD0
  • %User Profile%\Application Data\68AD0
  • %Program Files%\LP
  • %Program Files%\LP\25D6

(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).. %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.)

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

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 these folders

[ 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.
  • %Program Files%\D0FD0
  • %User Profile%\Application Data\68AD0
  • %Program Files%\LP
  • %Program Files%\LP\25D6

Step 3

Scan your computer with your Trend Micro product to delete files detected as BKDR_CYCBOT.AAL. 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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