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WORM_HUPIGON.YUB

June 12, 2017
 ALIASES:

Backdoor:Win32/Hupigon (Microsoft); W32/Hupigon.worm (McAfee); Packed.Win32.Black.d (Kaspersky); Mal/Behav-270 (Sophos); Trojan.Win32.Generic!BT (Sunbelt); Trojan horse SHeur.VCL (AVG)

 PLATFORM:

Windows

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

  • Threat Type: Worm

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It deletes itself after execution.

  TECHNICAL DETAILS

File Size:

721,408 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

12 Jun 2017

Arrival Details

This Worm 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 Worm drops the following copies of itself into the affected system:

  • %Program Files%\Common Files\Microsoft Shared\MSINFO\NTOETECT.exe
  • %System Root%\NTOETECT.exe

(Note: %Program Files% is the Program Files folder, where it usually is C:\Program Files on all Windows operating system versions; C:\Program Files (x86) for 32-bit applications running on Windows 64-bit operating systems.. %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)

Dropping Routine

This Worm drops the following files:

  • %System Root%\AutoRun.inf
  • %Program Files%\Common Files\Microsoft Shared\MSINFO\ReDelBat.bat
  • %Windows%\_NTOETECT.exe

(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.. %Program Files% is the Program Files folder, where it usually is C:\Program Files on all Windows operating system versions; C:\Program Files (x86) for 32-bit applications running on Windows 64-bit operating systems.. %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

Other Details

This Worm connects to the following possibly malicious URL:

  • {BLOCKED}8.255.242

It deletes itself after execution.

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

9.8

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

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%\AutoRun.inf
  • %Program Files%\Common Files\Microsoft Shared\MSINFO\ReDelBat.bat
  • %Windows%\_NTOETECT.exe

Step 3

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