TSPY_BEBLOH.YMNPE

May 03, 2018
 Analysis by: Marcus Ma. Antonio Capistrano
 ALIASES:

Trojan.Win32.Agent.qwgjso (KASPERSKY), Win32/Spy.Bebloh.O trojan (NOD32), Troj/Shiotob-CU (SOPHOS_LITE)

 PLATFORM:

Windows

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

  • Threat Type: Trojan Spy

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware, Downloaded from the Internet

This Trojan Spy 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:

368,640 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

25 Apr 2018

Payload:

Drops files, Connects to URLs/IPs, Downloads files

Arrival Details

This Trojan Spy 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 Spy adds the following registry entries:

HKEY_CURRENT_USER\Software\{random key}
(Default) = {hex values}

Download Routine

This Trojan Spy connects to the following website(s) to download and execute a malicious file:

  • http://www.{BLOCKED}r.cz/soubory/animace/enrgo.exe

It saves the files it downloads using the following names:

  • %User Temp%\enrgo.exe

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

Trend Micro detects the dowloaded file as:

Other Details

This Trojan Spy connects to the following URL(s) to check for an Internet connection:

  • www.google.com

It connects to the following possibly malicious URL:

  • https://{BLOCKED}nar.com/auth/

It does the following:

  • It does not proceed to its malicious routine if it detects that it is running in a VMWare environment

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

14.212.05

FIRST VSAPI PATTERN DATE:

25 Apr 2018

VSAPI OPR PATTERN File:

14.213.00

VSAPI OPR PATTERN Date:

26 Apr 2018

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

Restart in Safe Mode

[ Learn More ]

Step 4

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
    • {random key}

Step 5

Search and delete these files

[ 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.
  • %User Temp%\enrgo.exe

Step 6

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_BEBLOH.YMNPE. 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 7

Scan your computer with your Trend Micro product to delete files detected as TSPY_BEBLOH.YMNPE. 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 the following Trend Micro Support pages for more information:


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