Analysis by: Mark Joseph Manahan

ALIASES:

Trojan horse Generic10_c.BZCN (AVG) ,W32/Agentb.AOXN!tr (Fortinet) ,Trojan.Win32.Agentb.aoxn (Kaspersky) ,Generic (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

Infection Channel: Dropped by other malware

This Trojan may be dropped by other malware.

It is a component of other malware.

It connects to certain websites to send and receive information. However, as of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size: 100,864 bytes
File Type: DLL
Memory Resident: No
Initial Samples Received Date: 07 May 2014
Payload: Connects to URLs/IPs

Arrival Details

This Trojan may be dropped by other malware.

Installation

This Trojan is a component of other malware.

Other System Modifications

This Trojan modifies the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft
{83a47cab-4b76-47f3-bf79-88b1dfe4e410} = "{Hex Value}"

Other Details

This Trojan connects to the following website to send and receive information:

  • india1.{BLOCKED}e.{BLOCKED}s.com:443

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

NOTES:

It deletes the following registry entries:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\{service name}
InstallModule = "{value}"

It deletes the following file:

  • {service name}.{extension}

  SOLUTION

Minimum Scan Engine: 9.700
FIRST VSAPI PATTERN FILE: 10.780.04
FIRST VSAPI PATTERN DATE: 07 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 to delete files detected as TROJ_ANOZYNS.A. 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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