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Threat Encyclopedia

BAT_CRYPTOR.A

ANALYSIS BY

Adrian Cofreros


ALIASES:

Trojan-Ransom.BAT.Agent.aa(Kaspersky)

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

TECHNICAL DETAILS

SOLUTION

Minimum Scan Engine:

9.700

FIRST VSAPI PATTERN FILE:

10.938.05

FIRST VSAPI PATTERN DATE:

22 Jul 2014

VSAPI OPR PATTERN File:

10.939.00

VSAPI OPR PATTERN Date:

23 Jul 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

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

Search and delete this file

[ Learn More ]
There may be some files 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.
  • C:\PAYCRYPT_GMAIL_COM.txt
  • D:\PAYCRYPT_GMAIL_COM.txt
  • %Application Data%\Desktop\PAYCRYPT_GMAIL_COM.txt
  • %Desktop%\PAYCRYPT_GMAIL_COM.txt
  • %User Temp%\PAYCRYPT_GMAIL_COM.txt
  • %User Temp%\pycrp.bin
  • %User Temp%\DECODE.zip
  • C:\DECODE.zip
  • D:\DECODE.zip
  • %User Profile%\Desktop\DECODE.zip
  • %Application Data%\Desktop\DECODE.zip
  • %User Temp%\KEY.PRIVATE
  • %Application Data%\KEY.PRIVATE
  • C:\KEY.PRIVATE
  • D:\KEY.PRIVATE
  • %Desktop%\KEY.PRIVATE
  • %Application Data%\Desktop\KEY.PRIVATE

Step 4

Search and delete these folders

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.
 
  • %User Temp%\KEYPRIVATE

Step 5

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