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TSPY_EMOTET.THGOFAH

July 09, 2018
 Analysis by: Wilbert Vidal
 ALIASES:

Emotet-FHK!C0EBF36BB0F2 (McAfee); Trojan:Win32/Emotet.AC!bit (Microsoft)

 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


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:

106,496 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

03 Jul 2018

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.

Installation

This Trojan Spy drops the following copies of itself into the affected system:

  • %System%\{random filename}.exe

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

Other Details

This Trojan Spy connects to the following possibly malicious URL:

  • {BLOCKED}.{BLOCKED}.127.246
  • {BLOCKED}.{BLOCKED}.116.104

It does the following:

  • It creates the following service:
    • service name: {random malware filename}
    • service path: "%System%\{random filename}.exe" -{number} -{number}

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

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

14.362.07

FIRST VSAPI PATTERN DATE:

06 Jul 2018

VSAPI OPR PATTERN File:

14.363.00

VSAPI OPR PATTERN Date:

07 Jul 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

Disable this malware service

[ Learn More ]
  •  
    • {random malware filename}

Step 4

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