Analysis by: Janus Agcaoili
 PLATFORM:

Windows

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

  • Threat Type: File infector

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Canal de infección Via physical/removable drives

This file infector arrives via removable drives.

It executes the dropped file(s). As a result, malicious routines of the dropped files are exhibited on the affected system.

  TECHNICAL DETAILS

Tamaño del archivo 5,416,492 bytes
Tipo de archivo EXE
Residente en memoria No
Fecha de recepción de las muestras iniciales 28 Sep 2015

Arrival Details

This file infector arrives via removable drives.

File Infection

This is the Trend Micro detection for files infected by:

Dropping Routine

This file infector drops the following files:

  • %Temp%\sqlserver.exe - detected as BKDR_GIPPERS.A
  • %System%\dumpkernel.exe - detected as PE_GIPPERS.A-O
  • %Temp%\Server32History.dat - termporary file for decrypted host file, deleted after use
  • %Temp%\tttdelzzz.bat - deletes executed infected file, deletes self after execution
  • %Temp%\tttbrozzz.bat - restores and executes host file, executes %System%\dumpkernel.exe, and deletes self after execution

It executes the dropped file(s). As a result, malicious routines of the dropped files are exhibited on the affected system.

  SOLUTION

Motor de exploración mínimo 9.750
Primer archivo de patrones de VSAPI 11.964.07
Primera fecha de publicación de patrones de VSAPI 06 Oct 2015
Versión de patrones OPR de VSAPI 11.965.00
Fecha de publicación de patrones OPR de VSAPI 07 Oct 2015

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

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

Remove malware/grayware files dropped/downloaded by PE_GIPPERS.A. (Note: Please skip this step if the threats listed below have already been removed.)

Step 4

Scan your computer with your Trend Micro product to clean files detected as PE_GIPPERS.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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