BKDR_DEMTRANC.AB
Windows 2000, Windows, XP, Windows Server 2003
Threat Type: Backdoor
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
This backdoor connects to a URL to send gathered information and receive arbitrary commands from a remote malicious user.
This backdoor may be dropped by other malware.
It gathers certain information on the affected computer.
TECHNICAL DETAILS
Arrival Details
This backdoor may be dropped by the following malware:
- TROJ_PIDIEF.JK
Information Theft
This backdoor gathers the following information on the affected computer:
- Host name
- User name
- IP address
- Operating system version
- Proxy server
NOTES:
It connects to the following URL to send gathered information and receive arbitrary commands from a remote malicious user:
- {BLOCKED}.{BLOCKED}.154.157
It has the following capabilities:
- Download and execute other files
- Execute arbitrary commands
SOLUTION
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
Remove the malware/grayware file that dropped/downloaded BKDR_DEMTRANC.AB
- TROJ_PIDIEF.JK
Step 3
Identify and terminate files detected as BKDR_DEMTRANC.AB
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
Step 4
Scan your computer with your Trend Micro product to delete files detected as BKDR_DEMTRANC.AB. 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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