Analyzing ELF/Sshdinjector.A!tr with a Human and Artificial Analyst


ELF/Sshdinjector.A!tr is a collection of malware that can be injected into the SSH daemon. Samples of this malware collection surfaced around mid-November 2024.

While Fortinet researchers have a good amount of threat intelligence on them (e.g., they are attributed to the DaggerFly espionage group and were used during the Lunar Peek campaign against network appliances), nobody seems to have looked into what they actually do. In this blog post, the researchers will focus on the reverse engineering of the attack’s binaries and how this reverse engineering was achieved.

Read more…
Source: Fortinet


Sign up for our Newsletter


Related:

  • Massive Winos 4.0 Campaigns Target Taiwan

    February 20, 2026

    FortiGuard Labs recently observed several targeted phishing campaigns in Taiwan that use themes designed to exploit local business processes. These campaigns disseminate Winos 4.0 (ValleyRat) and subsequent malicious plugins through weaponized attachments or embedded links. The lures mimic official communications, such as tax audit notifications, tax filing software installers, and cloud-based e-invoice downloads. Fortinet researchers analysis ...

  • Age verification vendor Persona left frontend exposed

    February 20, 2026

    Researchers investigating Discord’s age-verification checks say they discovered an exposed frontend belonging to Persona, the identity-verification vendor used by Discord. It revealed a far more expansive surveillance and financial intelligence stack than a simple “teen safety” tool. A short while ago we reported that Discord will limit profiles to teen-appropriate mode until you verify your age. ...

  • ShinyHunters demands $1.5M not to leak Vegas casino and resort chain data

    February 20, 2026

    Las Vegas hotel and casino giant Wynn Resorts appears to be the latest victim of data-grabbing and extortion gang ShinyHunters. On Friday, the cybercrime crew listed the hospitality company on its blog, claiming to have stolen more than 800,000 records containing employees’ Social Security numbers and other private details. The extortionists set a February 23 deadline ...

  • Ukrainian gets five years for helping North Koreans secure US tech jobs

    February 20, 2026

    Ukrainian national Oleksandr Didenko will spend the next five years behind bars in the US for his involvement in helping North Korean IT workers secure fraudulent employment. The 29-year-old played a role in supporting individuals working for a hostile regime to get contracts in the US. In November 2025, Didenko pleaded guilty to wire fraud and ...

  • FBI: Increase in malware enabled ATM jackpotting incidents across United States

    February 19, 2026

    The Federal Bureau of Investigation (FBI) is releasing this FLASH to disseminate indicators of compromise (IOCs) and technical details associated with malware enabled ATM jackpotting. Threat actors exploit physical and software vulnerabilities in ATMs and deploy malware to dispense cash without a legitimate transaction. The FBI has observed an increase in ATM jackpotting incidents across the ...

  • AI-generated passwords are a security risk

    February 19, 2026

    Using Artificial Intelligence (AI) to generate your passwords is a bad idea. It’s likely to give that password to a criminal who can then use it in a dictionary attack—which is when an attacker runs through a prepared list of likely passwords (words, phrases, patterns) with automated tools until one of them works, instead of ...