TROJ_AGENT.ATML

 Analysis by: Sabrina Sioting

 PLATFORM:

Windows 2000, XP, Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW


This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It arrives as a component bundled with malware/grayware/spyware packages.

It requires its main component to successfully perform its intended routine.

  TECHNICAL DETAILS

File Size:

27,649 bytes

File Type:

DLL

Memory Resident:

No

Initial Samples Received Date:

29 Oct 2010

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It arrives as a component bundled with malware/grayware/spyware packages.

Other Details

This Trojan requires its main component to successfully perform its intended routine.

  SOLUTION

Minimum Scan Engine:

8.900

VSAPI OPR PATTERN File:

07.578.11

VSAPI OPR PATTERN Date:

29 Oct 2010

Step 1

For Windows ME and XP users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Step 1: Identify and note files detected as TROJ_AGENT.ATML by scanning the computer using your Trend Micro product

[ Learn More ]

  1. For Windows 98 and ME users, Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
  2. 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.
  3. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 2: Restart in Safe Mode

[ Learn More ]

To restart in Safe Mode:

• For Windows 98 and ME users

  1. Restart your computer.
  2. Press the CTRL key until the startup menu appears.
  3. Choose the Safe Mode option then press Enter.

• For Windows NT (VGA mode) users

  1. Click Start>Settings>Control Panel.
  2. Double-click the System icon.
  3. Click the Startup/Shutdown tab.
  4. Set the Show List field to 10 seconds and click OK to save this change.
  5. Shut down and restart your computer.
  6. Select VGA mode from the startup menu.

• For Windows 2000 users

  1. Restart your computer.
  2. Press the F8 key, when you see the Starting Windows bar at the bottom of the screen.
  3. Choose the Safe Mode option from the Windows Advanced Options Menu then press Enter.

• For Windows XP users

  1. Restart your computer.
  2. Press F8 after the Power-On Self Test (POST) is done. If the Windows Advanced Options Menu does not appear, try restarting and then pressing F8 several times after the POST screen.
  3. Choose the Safe Mode option from the Windows Advanced Options Menu then press Enter.

• For Windows Server 2003 users

  1. Restart your computer.
  2. Press F8 after Windows starts up. If the Windows Advanced Options Menu does not appear, try restarting again and then pressing F8 several times after restarting.
  3. On the Windows Advanced Option menu, use the arrow keys to select Safe Mode, and then press Enter.

Step 3: Search and delete the noted file detected as TROJ_AGENT.ATML

[ Learn More ]

To search and delete the .DLL file:

  1. Right-click on the Start button then choose Search... or Find..., depending on the version of Windows you are running.
  2. In the Named input box, type the name(s) of the file(s) detected earlier.
  3. In the Look In drop-down list, select My Computer, then press Enter.
  4. Once located, select the file then press SHIFT+DELETE.

Step 3

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_AGENT.ATML 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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