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Trojan.INF.AUTORUN.NI

July 09, 2021
 Analysis by: Bren Matthew Ebriega
 ALIASES:

Trojan.AutorunINF.Gen (BITDEFENDER)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 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:

164 bytes

File Type:

INF

Memory Resident:

No

Initial Samples Received Date:

09 Jul 2021

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.

Propagation

The said .INF file contains the following strings:

[AutoRun]
open=cx820.bat
;{Random characters}
shell\open\Command=cx820.bat

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

16.832.06

FIRST VSAPI PATTERN DATE:

09 Jul 2021

VSAPI OPR PATTERN File:

16.833.00

VSAPI OPR PATTERN Date:

10 Jul 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

Search and delete AUTORUN.INF files created by Trojan.INF.AUTORUN.NI that contain these strings

[ Learn More ]
 
  • [AutoRun]
    open=cx820.bat
    ;{Random characters}
    shell\open\Command=cx820.bat

Step 3

Scan your computer with your Trend Micro product to delete files detected as Trojan.INF.AUTORUN.NI. 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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