Analysis by: Mc Justine De Guzman
ALIASES:

JS/Bondat.l (NAI);

 PLATFORM:

Windows

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

  • Threat Type: Worm

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Worm arrives via removable drives. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It modifies the user's Internet Explorer home page into a certain website. This action allows the malware to point to a website which may contain malware, putting the affected computer at greater risk of malware infection.

  TECHNICAL DETAILS

File Size: 31,195 bytes
File Type: JS
Initial Samples Received Date: 08 Oct 2018

Arrival Details

This Worm arrives via removable drives.

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

Propagation

This Worm drops the following copy(ies) of itself in all removable drives:

  • {Drive Letter}:\{Random File Name}.JPG{spaces}.jse

Web Browser Home Page and Search Page Modification

This Worm modifies the user's Internet Explorer home page to the following websites:

  • https://www.{BLOCKED}.es/#output=search&sclient=psy-ab&q=fiverdolly+31195

  SOLUTION

Minimum Scan Engine: 9.850
FIRST VSAPI PATTERN FILE: 15.718.05
FIRST VSAPI PATTERN DATE: 02 Mar 2020
VSAPI OPR PATTERN File: 15.719.00
VSAPI OPR PATTERN Date: 03 Mar 2020

Step 1

Trend Micro Predictive Machine Learning detects and blocks malware at the first sign of its existence, before it executes on your system. When enabled, your Trend Micro product detects this malware under the following machine learning name:

     
    • Downloader.JS.TRX.XXJSE9EFF012

Step 2

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 3

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 4

Restart in Safe Mode

[ Learn More ]

Step 5

Search and delete these files

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • {Drive Letter}:\{Random File Name}.JPG(spaces).jse

Step 6

Reset the Internet Explorer Home and Search pages

[ Learn More ]

Step 7

Restart in normal mode and scan your computer with your Trend Micro product for files detected as Worm.JS.BONDAT.CC. 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 this Knowledge Base page for more information.


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