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MalwarehighExploited in the wild

XLoader Malware Uses LuaJIT and Injection to Hide Credential Stealer

Original title: Hackers Abuse LuaJIT and Windows Process Injection to Hide XLoader Credential-Stealing Malware

GBHackersby Mayura Kathir ()4 min read1
Part of a story covered by 2 sourcesHackers Hide XLoader Malware in Fake Business Orders Using LuaJIT InjectionMerged summary & timeline
AI summary · x-ai/grok-4.7Summaries by Vani AI

The loader hides the credential stealer inside an embedded LuaJIT interpreter and moves it into another Windows process through shared-section injection.

Hackers abuse LuaJIT and Windows process injection to hide XLoader credential-stealing malware. The campaign uses business-themed email lures and delivered Agent Tesla, Remcos and XWorm. The chain starts with order and payment emails containing RAR archives with obfuscated JScript that launches the hidden loader.

Unconfirmed: The conditional persistence branch is treated as a capability rather than confirmed behavior.

Key facts
  • The script drops EHFTUOMQDRXVTJSF.exe and FSJTVXRDQMOUTFHE in the Documents folder.
  • XLoader uses shared-section injection to run in a suspended SysWOW64 host process.
  • A conditional persistence branch can create a scheduled task every ten minutes if a .mui marker is present.
Security assessment · AI, from the articleExploited in the wild

Impact: Steals saved passwords, browser cookies and other login data from infected hosts.

What to do
  1. 1.Block RAR-delivered script files
  2. 2.Monitor wscript.exe launching executables from Documents folder
  3. 3.Alert on unexpected SysWOW64 utilities that start suspended
Analyze this story with Vani AIImpact, who is affected and what defenders should do, in a new chat

From the original article

4 min read at gbhackers.com

A new XLoader infection chain. It hides the credential stealer inside an embedded LuaJIT interpreter. It moves it into another Windows process through shared-section injection.

GBHackers

By Mayura Kathir · gbhackers.com

Read the full article at GBHackers

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.