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TASK#STOMP PowerShell Backdoor Steals Documents, Wi-Fi Passwords, and Clipboard Data

The Hacker News ()3 min read2
Part of a story covered by 2 sourcesTASK#STOMP: Securonix-details Windows PowerShell backdoor stealing documents, Wi-Fi passwords, clipboard data, and screenshots via five persistence footholdsMerged summary & timeline
AI summary · grok-4.7Summaries by Vani AI

Securonix details TASK#STOMP, a PowerShell backdoor stealing documents, Wi-Fi passwords, and clipboard data.

Securonix researchers disclosed TASK#STOMP, a campaign that uses wscript.exe to run an encoded VBScript and install a PowerShell backdoor. The malware harvests business documents, Wi-Fi passwords, clipboard contents, and screenshots, watches for new files, and accepts remote commands. Persistence uses disguised scheduled tasks plus a Startup-folder script, with redundant command-and-control at corecloudfileshare.xyz and attachmentsharingdrive.xyz. Initial access is unclear, though phishing is possible, and the chain later opens an Iranian government tenders site in Chrome.

Key facts
  • wscript.exe runs a randomly named desktop VBScript to start the chain.
  • Persistence uses disguised scheduled tasks and Startup-folder script msdiag.vbs.
  • PowerShell modules steal documents, Wi-Fi passwords, clipboard data, and screenshots.
  • Redundant C2 domains are corecloudfileshare.xyz and attachmentsharingdrive.xyz.
  • The chain timestomps files and later opens an Iranian tenders site in Chrome.
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Indicators of compromise

auto-extracted · verify before use · export allAll
TypeIndicatorContext
domainattachmentsharingdrive.xyzthe same C2 infrastructure ("corecloudfileshare[.]xyz" or "attachmentsharingdrive[.]xyz"). Interestingly, the two components incorporate a mutual
domaincorecloudfileshare.xyzh the modules communicate with the same C2 infrastructure ("corecloudfileshare[.]xyz" or "attachmentsharingdrive[.]xyz"). Interestingly, the t
domainirantenders.comChrome in a maximized window and opens a specific URL from "irantenders[.]com," which hosts a searchable database of all tenders and co

From the original article

3 min read at thehackernews.com

Cybersecurity researchers have disclosed details of a new campaign dubbed TASK#STOMP that delivers a PowerShell backdoor designed to harvest sensitive data from compromised hosts. The backdoor "automatically harvests and exfiltrates business documents, watches the filesystem for new files in real time, steals Wi-Fi passwords and clipboard contents, takes screenshots, and accepts arbitrary

The Hacker News

thehackernews.com

Read the full article at The Hacker News

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.