Fake attachment. Roundcube mail server attacks exploit CVE-2024-37383 vulnerability.


In September 2024, threat intelligence experts from the Positive Technologies Security Expert Center (PT ESC) discovered an email sent to a governmental organization belonging to a CIS country. Timestamps indicate that the email was sent back in June 2024. The email appeared to be a message without text, containing only an attached document.

However, the email client didn’t show the attachment. The body of the email contained distinctive tags with the statement eval(atob(…)), which decode and execute JavaScript code:

Read more…
Source: Positive Technologies


Sign up for our Newsletter


Related:

  • Roaming Mantis, part V

    February 27, 2020

    Kaspersky has continued to track the Roaming Mantis campaign. The group’s attack methods have improved and new targets continuously added in order to steal more funds. The attackers’ focus has also shifted to techniques that avoid tracking and research: whitelist for distribution, analysis environment detection and so on. We’ve also observed new malware families: Fakecop (also ...

  • Billions of Devices Open to Wi-Fi Eavesdropping Attacks

    February 26, 2020

    A serious vulnerability in Wi-Fi chips has been discovered that affects billions of devices worldwide, according to researchers. It allows attackers to eavesdrop on Wi-Fi communications. The bug (CVE-2019-15126) stems from the use of an all-zero encryption key in chips made by Broadcom and Cypress, according to researchers at ESET, which results in data decryption. This ...

  • PowerGhost Spreads Beyond Windows Devices, Haunts Linux Machines

    February 24, 2020

    Trend Micro researchers encountered a PowerGhost variant that infects Linux machines via EternalBlue, MSSQL, and Secure Shell (SSH) brute force attacks. The malware was previously known to target only Windows systems. PowerGhost is a fileless cryptocurrency-mining malware that attacks corporate servers and workstations, capable of embedding and spreading itself undetected across endpoints and servers. It was known to exploit PowerShell, a ...

  • ObliqueRAT linked to threat group launching attacks against government targets

    February 21, 2020

    Researchers have uncovered a new Remote Access Trojan (RAT) that appears to be the handiwork of a threat group specializing in attacks against government and diplomatic targets. On Thursday, Cisco Talos researchers said the malware, dubbed ObliqueRAT, is being deployed in a new campaign focused on targets in Southeast Asia. The latest campaign started in January 2020 and ...

  • Threat Spotlight: Nuke Ransomware

    February 19, 2020

    Nuke ransomware, first identified in 2016, encrypts files with an AES 256-bit encryption key that is protected by asymmetrically encrypting it using 2048-bit RSA. Once a file is encrypted, Nuke changes the file name to a combination of random characters followed by a .nuclear55 extension. For example, an infected file name might be “ab0a+afbamcdEcmf.nuclear55”. Once Nuke executes it ...

  • SMS Attack Spreads Emotet, Steals Bank Credentials

    February 19, 2020

    Attackers are sending SMS messages purporting to be from victims’ banks – but once they click on the links in the text messages, they are asked to hand over their banking credentials and download a file that infects their systems with the Emotet malware. Emotet has continued to evolve since its return in September, including a new, ...