ALIASES:

Trojan.Win32.Generic!BT (Sunbelt)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 INFORMATION EXPOSURE:

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This spyware 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: 910,142 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 06 May 2015

Arrival Details

This spyware 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 spyware deletes the following files:

  • %System Root%\clist.dat

(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)

It modifies the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{D5DE8D20-5BB8-11D1-A1E3-00A0C90F2731}\InProcServer32
ThreadingModel = "Apartment"

(Note: The default value data of the said registry entry is Apartment.)

Dropping Routine

This spyware drops the following files:

  • %System Root%\xduyefda.zip
  • %System Root%\TCC.uzy
  • %System Root%\MSVBVM60.DLL
  • %System Root%\stdole2.tlb
  • %System Root%\CList.dat
  • %System%\MSVBVM60.DLL
  • %System%\stdole2.tlb
  • %System%\C:\Documents and Settings\—T‹g\My Documents\MYƒvƒƒOƒ‰ƒ€\NovaCast Japan\•ÏŠ·ƒvƒƒOƒ‰ƒ€\TCC.uzy

(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.. %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine: 9.750

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

Restore these modified registry values

[ Learn More ]

Important:Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this only if you know how to or you can seek your system administrator's help. You may also check out this Microsoft article first before modifying your computer's registry.

  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{D5DE8D20-5BB8-11D1-A1E3-00A0C90F2731}\InProcServer32
    • From: ThreadingModel = "Apartment"
      To: ThreadingModel = ""Apartment""

Step 3

Search and delete these components

[ Learn More ]
There may be some components that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • %System Root%\xduyefda.zip
  • %System Root%\TCC.uzy
  • %System Root%\MSVBVM60.DLL
  • %System Root%\stdole2.tlb
  • %System Root%\CList.dat
  • %System%\MSVBVM60.DLL
  • %System%\stdole2.tlb
  • %System%\C:\Documents and Settings\—T‹g\My Documents\MYƒvƒƒOƒ‰ƒ€\NovaCast Japan\•ÏŠ·ƒvƒƒOƒ‰ƒ€\TCC.uzy

Step 4

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

Step 5

Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.

  • %System Root%\clist.dat


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