SteelFox Leverages Signed Windows Drivers to Attack Kernel


This week, the SonicWall Capture Labs threat research team investigated a sample of SteelFox malware.

This is bundled with “software activators” for JetBrains and Foxit PDF readers. During installation, they run as a service and use vulnerable signed Windows drivers to exploit and attack the kernel. Secondarily, cryptominers such as XMRig are run in memory via AppInfo, as well as network communications. The sample is detected as an executable without a packer or protector; however, the file entropy shows that it is, in fact, packed.

Read more…
Source: SonicWall


Sign up for our Newsletter


Related:

  • Sha zhu pan scam uses AI chat tool to target iPhone and Android users

    August 2, 2023

    Over the past two years, we have been tracking a variety of scams targeting mobile device users, generally referred to as “shā zhū pán” (杀猪盘, which translates as “butcher plate”) or “Pig Butchering.” This includes a category we labelled as “CryptoRom” when we initially investigated it in 2020, because of its two distinguishing characteristics—a focus on ...

  • CISA and International Partner NCSC-NO Release Joint Cybersecurity Advisory on Threat Actors Exploiting Ivanti EPMM Vulnerabilities

    August 1, 2023

    The Cybersecurity and Infrastructure Security Agency (CISA) and the Norwegian National Cyber Security Centre (NCSC-NO) have released a joint Cybersecurity Advisory (CSA), Threat Actors Exploiting Ivanti EPMM Vulnerabilities, in response to the active exploitation of CVE-2023-35078 and CVE-2023-35081 affecting Ivanti Endpoint Manager Mobile (EPMM) (formerly known as MobileIron Core). Threat actors can chain these vulnerabilities to ...

  • NodeStealer 2.0 – The Python Version: Stealing Facebook Business Accounts

    August 1, 2023

    Unit 42 researchers have recently discovered a previously unreported phishing campaign that distributed an infostealer equipped to fully take over Facebook business accounts. Facebook business accounts were targeted with a phishing lure offering tools such as spreadsheet templates for business. This is part of a growing trend of threat actors targeting Facebook business accounts – for ...

  • Thailand feels the force of cyber-attacks

    August 1, 2023

    The average number of cyber-attacks on organisations in Thailand was almost double the average rate globally and slightly higher than the average within Southeast Asia over the past six months, according to Check Point Research. Thai organisations were attacked 2,388 times per week on average during the last six months, compared with 2,375 attacks per week ...

  • Google AMP – The Newest of Evasive Phishing Tactic

    August 1, 2023

    A new phishing tactic utilizing Google Accelerated Mobile Pages (AMP) has hit the threat landscape and proven to be very successful at reaching intended targets. Google AMP is an open-source HTML framework used to build websites that are optimized for both browser and mobile use. The websites that Cofense researches observed in these campaigns are hosted ...

  • Out of the Sandbox: WikiLoader Digs Sophisticated Evasion

    July 31, 2023

    Proofpoint researchers identified a new malware we call WikiLoader. It was first identified in December 2022 being delivered by TA544, an actor that typically uses Ursnif malware to target Italian organizations. Proofpoint observed multiple subsequent campaigns, the majority of which targeted Italian organizations. WikiLoader is a sophisticated downloader with the objective of installing a second malware ...