BKDR_PCCLIEN.BQD

This backdoor is the dropped file of TROJ_ARTIEF.AEB, which leverages the death of North Korean leader Kim Jong-Il.

To get a one-glance comprehensive view of the behavior of this Backdoor, refer to the Threat Diagram shown below.

It connects to specific URL(s) to send and receive commands from a remote malicious user. In turn, this compromises system security.

This backdoor may be dropped by other malware.

However, as of this writing, the said sites are inaccessible.

It deletes the initially executed copy of itself.

Arrival Details

This backdoor may be dropped by the following malware:

• TROJ_ARTIEF.AEB

Installation

This backdoor drops the following component file(s):

• %Windows%\comres.dll - also detected as BKDR_PCCLIEN.BQD

(Note: %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.)

It drops the following copies of itself into the affected system:

• %User Temp%\{Random Numbers}

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003.)

Backdoor Routine

This backdoor opens the following port(s) where it listens for remote commands:

• TCP port 8000

It connects to the following URL(s) to send and receive commands from a remote malicious user:

• cdpcp.{BLOCKED}u.com

However, as of this writing, the said sites are inaccessible.

Other Details

This backdoor deletes the initially executed copy of itself

NOTES:

This backdoor may be instructed by the remote malicious user to download possibly malicious files.