Analysis by: Arianne Grace Dela Cruz
ALIASES:

TrojanDownloader:O97M/EncDoc!MSR (MICROSOFT); Trojan.GenericFCA.Agent.98791 (BITDEFENDER)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This Trojan may be dropped by other malware.

  TECHNICAL DETAILS

File Size: 23,870 bytes
File Type: DOCX
Memory Resident: No
Initial Samples Received Date: 12 Jul 2023

Arrival Details

This Trojan may be dropped by the following malware:

Information Theft

This Trojan gathers the following data:

  • Username
  • IP Address

Other Details

This Trojan does the following:

  • It renders an iframe that will be used for execution of the next stage payload.

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 18.568.08
FIRST VSAPI PATTERN DATE: 13 Jul 2023
VSAPI OPR PATTERN File: 18.569.00
VSAPI OPR PATTERN Date: 14 Jul 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

Identify and terminate files detected as Trojan.W97M.CVE202336884.YEDGL

[ Learn More ]
  1. Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
  2. If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
  3. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 3

Scan your computer with your Trend Micro product to delete files detected as Trojan.W97M.CVE202336884.YEDGL. 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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