BKDR_GENDAL.F

October 09, 2012
 Analysis by: Sabrina Lei Sioting
 ALIASES:

Constructor.MSIL.Agent.e [Kaspersky]; Generic.dx!tia [McAfee]; Trojan:Win32/Orsam!rts [Microsoft]; Backdoor.Trojan [Symantec]

 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 is the Trend Micro detection for files that exhibit certain behaviors.

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.

It is capable of creating its own server components.

  TECHNICAL DETAILS

File Size:

253,952 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

21 Jan 2011

Payload:

Steals information, Terminates processes

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.

Backdoor Routine

This backdoor is capable of creating its own server components.

NOTES:
This is the Trend Micro detection for files that exhibit the following behaviors:

  1. Sends data on email and/or FTP by stealing cookies from Mozilla FireFox, Opera, IE, Google Crome and stealing passwords from: ICQ 6.0 and Qip Infium.

  2. Steals files from the affected users' systems

  3. Key Logging

  4. Takes screenshots of the users'systems:

    Select a period creating screenshots
    The number of newly created files
    The name and extension
    Remove generated file
    Preservation of local

  5. Replaces characters in the buffer

  6. Terminates any running process

  7. Controls a remote desktop

  8. Client component of this backdoor

  9. Redirects the affected users access from one site to another

  10. Creates a server component of this backdoor

  SOLUTION

Minimum Scan Engine:

8.900

FIRST VSAPI PATTERN FILE:

7.784.13

FIRST VSAPI PATTERN DATE:

21 Jan 2011

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

Scan your computer with your Trend Micro product to delete files detected as BKDR_GENDAL.F. 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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