TerminalFix campaign deploys a reverse tunnel through multistage intrusion


Microsoft Threat Intelligence has observed a TerminalFix campaign, a variant of ClickFix, targeting organizations across multiple industries. The campaign uses compromised websites to display a fake Cloudflare CAPTCHA verification overlay that tricks users into copying and executing a malicious PowerShell command. While traditional ClickFix campaigns direct victims to the Windows Run dialog, TerminalFix campaigns apply the same technique but direct users to Windows Terminal or PowerShell instead, increasing the likelihood that complex, multi-line scripts execute successfully. Unlike earlier ClickFix variants that typically deliver a single infostealer, this TerminalFix campaign deploys a sophisticated multi-stage attack chain that combines DLL sideloading, steganographic payload extraction, extensive Active Directory reconnaissance, and a custom reverse-tunnel implant – giving the attacker persistent, network-level proxy access through the compromised host.

Read more…
Source:  Microsoft News


Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox


Related:

  • Thousands of PCs Affected by Nodersok/Divergent Malware

    September 27, 2019

    New malware identified by Microsoft and Cisco Talos has affected thousands of PCs in the United States and Europe and turns systems into proxies for performing malicious activity, the companies said. The fileless threat—called Nodersok by Microsoft and Divergent by Cisco Talos—has many of its own components but also takes advantage of existing tools to do ...

  • WhiteShadow downloader uses Microsoft SQL queries to deliver malicious payloads

    September 27, 2019

    Researchers have documented the emergence of a downloader that makes use of Microsoft SQL queries to pull and deliver malicious payloads. In August this year, Proofpoint researchers found the new, staged downloader, known as WhiteShadow, which is being used to deliver a variety of malware to vulnerable systems. The cybersecurity team said in a blog post on Thursday ...

  • Arcane Stealer V Takes Aim at the Low End of the Dark Web

    September 27, 2019

    A general-purpose info-stealing malware is poised to make a splash in cybercrime circles, thanks to its market niche: It’s positioned as an ideal tool for low-skilled adversaries looking to get some skin in the game without having a lot of expertise. According to the Fidelis Threat Research Team (TRT), the Arcane Stealer V malware is an ...

  • Masad Spyware Uses Telegram Bots for Command-and-Control

    September 27, 2019

    A freshly discovered commercial spyware dubbed the “Masad Clipper and Stealer” is using Telegram bots as its command-and-control (C2) hub. Masad harvests information from Windows and Android users and also comes with a full cadre of other malicious capabilities, including the ability to steal cryptocurrency from victims’ wallets. According to an analysis from Juniper Threat Labs on ...

  • 17 US utility firms targeted by mysterious state-sponsored group

    September 24, 2019

    A mysterious state-sponsored hacking group has targeted at least 17 US utility firms with phishing emails for a five-month period between April 5 and August 29, Proofpoint reported today. The purpose of these attacks was to infect employees at US utility firms with LookBack, a remote access trojan with an extensive set of features. While no formal ...

  • Russian state hackers rarely share code with one another

    September 24, 2019

    Russia’s state-sponsored hacking groups rarely share code with one another, and when they do, it’s usually within groups managed by the same intelligence service, a new joint report published today reveals. This report, co-authored by Check Point and Intezer Labs, is a first of its kind in its field. The two companies looked at nearly 2,000 ...