Trojan.Win32.DELSHAD.AC

April 04, 2023

• Email
• Facebook
• 
  Twitter
• Google+
• Linkedin

 Analysis by: Ricardo III Valdez

---

 ALIASES:

Gen:Heur.Mint.SP.Cleaner.2 (BITDEFENDER)

 PLATFORM:

Windows

 OVERALL RISK RATING:

 DAMAGE POTENTIAL:

 DISTRIBUTION POTENTIAL:

 REPORTED INFECTION:

 INFORMATION EXPOSURE:

• 
  Threat Type: Trojan
• 
  Destructiveness: No
• 
  Encrypted:
• 
  In the wild: Yes

  OVERVIEW

This Trojan 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:

366 bytes

File Type:

Other

Memory Resident:

Yes

Initial Samples Received Date:

03 Apr 2023

Arrival Details

This Trojan 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 adds the following processes:

• vssadmin.exe delete shadows /all /quiet
• bcdedit.exe /set {default} recoveryenabled no
• bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

18.360.04

FIRST VSAPI PATTERN DATE:

03 Apr 2023

VSAPI OPR PATTERN File:

18.361.00

VSAPI OPR PATTERN Date:

04 Apr 2023

Step 1

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.

Step 2

Scan your computer with your Trend Micro product to delete files detected as Trojan.Win32.DELSHAD.AC. 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:

• Home and Home Office Support
• Business Support

Did this description help? Tell us how we did.