Analysis by: Roland Marco Dela Paz
ALIASES:

Trojan:Win32/Enchanim (Microsoft); Trojan-Banker.Win32.Banker.boxi (Kaspersky)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • 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.

  TECHNICAL DETAILS

File Size: Varies
File Type: EXE
Memory Resident: Yes
Initial Samples Received Date: 21 Feb 2012

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.

Other System Modifications

This Trojan adds the following registry keys:

HKEY_CURRENT_USER\SOFTWARE\Classes\
CLSID
{AC8DEC83-8DEC-EC83-8DEC-C8DEAC8DEC83} =

Process Termination

This Trojan terminates the following processes if found running in the affected system's memory:

  • cfp.exe
  • avp.exe
  • kaspersky.exe
  • op_mon.exe
  • mcafee.exe
  • mcagent.exe
  • mcshield.exe
  • mctray.exe
  • mcsvhost.exe
  • mfevtps.exe
  • mfefire.exe
  • zonealarm.exe
  • egui.exe
  • nod32.exe
  • ekrn.exe
  • nod32kui.exe
  • msseces.exe
  • spiderui.exe
  • drwagntd.exe
  • drwagnui.exe
  • spiderml.exe
  • spidernt.exe
  • avscan.exe
  • avnotify.exe
  • avgnt.exe
  • ashdisp.exe
  • avgnsx.exe
  • avgcsrvx.exe
  • avgrsx.exe
  • avgw.exe
  • avgamsvr.exe
  • avg.exe
  • avgwdsvc
  • norton.exe
  • ccsvchst.exe
  • psctrls.exe
  • pavfnsvr.exe
  • pshost.exe
  • avengine.exe

NOTES:
It queries the following registry to check if it is running under a VirtualBox:

HKEY_LOCAL_MACHINE\HARDWARE\ACPI\DSDT\VBOX__M

It check for the presence of the following registry key to verify if there’s a SysAnalyzer software installed in the machine:

SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SysAnalyzer

It checks if the machine is using a proxy server by querying the following registry key:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable

It creates the following event:
  • Global\pp_evt-AC8DEC83

  SOLUTION

Minimum Scan Engine: 9.200
FIRST VSAPI PATTERN FILE: 8.792.04
FIRST VSAPI PATTERN DATE: 21 Feb 2012
VSAPI OPR PATTERN File: 8.793.00
VSAPI OPR PATTERN Date: 22 Feb 2012

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

Identify and terminate files detected as TROJ_GLUPINS.A

[ Learn More ]
  1. 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.
  2. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 3

Delete this registry key

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

 
  • In HKEY_CURRENT_USER\SOFTWARE\Classes\CLSID
    • {AC8DEC83-8DEC-EC83-8DEC-C8DEAC8DEC83}

Step 4

Scan your computer with your Trend Micro product to delete files detected as TROJ_GLUPINS.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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