Dissecting a PHP web server rootkit


SophosLabs recently acquired a Linux implant associated with compromised BIG-IP Access Policy Management (APM) environments that use Apache and PHP components. The malware demonstrates advanced techniques including custom ELF loading, function hooking, and runtime code patching to evade detection while maintaining persistent access through hidden web shells.

The implant delivers a familiar outcome – on-demand server‑side code execution commonly associated with web shells – but implements it using deeper Linux- and Apache‑specific tradecraft.

Read more…
Source:  Sophos News


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


Related:

  • US military notifies 20,000 of data breach after cloud email leak

    February 14, 2024

    The U.S. Department of Defense is notifying tens of thousands of individuals that their personal information was exposed in an email data spill last year. According to the breach notification letter sent out to affected individuals on February 1, the Defense Intelligence Agency — the DOD’s military intelligence agency — said, “numerous email messages were inadvertently ...

  • Prudential reveals it was hit by data breach

    February 14, 2024

    Hackers were able to break into one of the largest life insurance companies in the United States and stole sensitive employee and contractor data. Prudential Financial has filed an 8-K form with the U.S. Securities and Exchange Commission (SEC) detailing the attack, according to a report. As per the filing, unnamed threat actors accessed the networks ...

  • TicTacToe Dropper

    February 14, 2024

    While analyzing malware samples collected from several victims, the FortiGuard team identified a grouping of malware droppers used to deliver various final-stage payloads throughout 2023. Malware droppers are malicious software designed to deliver and execute additional malware on a victim system and are employed to obfuscate final payloads during load and initial execution. Droppers within this ...

  • Bank Of America Warns Customers Of Data Breach Following 2023 Hack

    February 13, 2024

    A November 2023 breach at IT consulting and service provider Infosys McCamish Systems has now been confirmed to have led to a data breach impacting Bank of America customers. The number of Bank of America customers impacted by the breach, including personally identifiable information such as social security numbers, account numbers, date of birth and addresses, ...

  • CVE-2023-47218: QNAP QTS and QuTS Hero Unauthenticated Command Injection (FIXED)

    February 13, 2024

    Rapid7 has identified an unauthenticated command injection vulnerability in the QNAP operating system known as QTS and QuTS hero. QTS is a core part of the firmware for numerous QNAP entry- and mid-level Network Attached Storage (NAS) devices, and QuTS hero is a core part of the firmware for numerous QNAP high-end and enterprise NAS devices. ...

  • Community Alert: Ongoing Malicious Campaign Impacting Azure Cloud Environments

    February 12, 2024

    Over the past weeks, Proofpoint researchers have been monitoring an ongoing cloud account takeover campaign impacting dozens of Microsoft Azure environments and compromising hundreds of user accounts, including senior executives. This post serves as a community warning regarding the attack and offers suggestions that affected organizations can implement to protect themselves from it. Proofpoint researchers detected ...