Analysis by: Thea Patrice Tajonera
ALIASES:

Trojan.BAT.AALV (BITDEFENDER); Worm.BAT.Agent (IKARUS)

 PLATFORM:

Windows

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

  • Threat Type: Joke Program

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet

This Joke Program 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: 74 bytes
File Type: BAT
Memory Resident: No
Initial Samples Received Date: 28 Mar 2021
Payload: Displays message/message boxes

Arrival Details

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

Other Details

This Joke Program does the following:

  • It creates a cmd window with the following text:

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 2.395.00
FIRST VSAPI PATTERN DATE: 28 Mar 2021
VSAPI OPR PATTERN File: 2.396.00
VSAPI OPR PATTERN Date: 29 Mar 2021

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 Joke.BAT.VIRUSHUNTER.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 the following Trend Micro Support pages for more information:


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