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TROJ_PROXY.VTR

May 23, 2014
 Analysis by: Adrian Cofreros
 ALIASES:

Trojan.Win32.Patched.lm(Kaspersky),W32/Patched.AX(Panda)

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW


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

It does not have any propagation routine.

It does not have any backdoor routine.

It does not have any downloading capability.

  TECHNICAL DETAILS

File Size:

18,124 bytes

File Type:

DLL

Memory Resident:

Yes

Initial Samples Received Date:

16 May 2014

Payload:

Listens to certain ports

Arrival Details

This Trojan may arrive bundled with malware packages as a malware component.

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

Propagation

This Trojan does not have any propagation routine.

Backdoor Routine

This Trojan does not have any backdoor routine.

Download Routine

This Trojan does not have any downloading capability.

Other Details

This Trojan requires the following additional components to properly run:

  • LoadLibrary.dll

NOTES:

It will listen to the following port in which it serves as a way before responding a connection:

  • 1533

It provides the following proxy server connection to its component:

  • {BLOCKED}.{BLOCKED}.{BLOCKED}.{BLOCKED}:8080

It provides a connection to the following IP address using the proxy server:

  • {BLOCKED}0.{BLOCKED}5.195.131:443

It does not have rootkit capabilities.

It does not exploit any vulnerability.

  SOLUTION

Minimum Scan Engine:

9.700

FIRST VSAPI PATTERN FILE:

10.798.08

FIRST VSAPI PATTERN DATE:

16 May 2014

VSAPI OPR PATTERN File:

10.799.00

VSAPI OPR PATTERN Date:

17 May 2014

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

Scan your computer with your Trend Micro product and note files detected as TROJ_PROXY.VTR

Step 3

Restart in Safe Mode

[ Learn More ]

Step 4

Search and delete the file detected as TROJ_PROXY.VTR

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden files in the search result.

Step 5

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