Analysis by: Joshua John Bantayan
ALIASES:

HackTool:JS/Jsprat (MICROSOFT); HackTool.Java.JSP.b (KASPERSKY)

 PLATFORM:

Windows

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

  • Threat Type: Hacking Tool

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet, Dropped by other malware

This Hacking Tool 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: 74,881 bytes
File Type: Other
Memory Resident: No
Initial Samples Received Date: 29 Jan 2021
Payload: Performs specific actions in affected systems

Arrival Details

This Hacking Tool 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 Hacking Tool does the following:

  • It runs on any JavaServer Pages (JSP) compatible Web server.
  • It may perform the following actions on the affected system:
    • Download files as ZIP
    • Upload files
    • Execute command shell commands
    • Get file info
    • Get Directories
    • Edit file contents
    • Rename files
    • Delete files
    • Create directory
    • Create file
    • Move file
    • Copy file

  SOLUTION

Minimum Scan Engine: 9.800
SSAPI PATTERN File: 2.374.30
SSAPI PATTERN Date: 30 Jan 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

Identify and terminate files detected as HackTool.JS.JSPRat.BGBZ

[ 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 HackTool.JS.JSPRat.BGBZ. 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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