Sleep with one eye open: how Librarian Ghouls steal data by night


Librarian Ghouls, also known as “Rare Werewolf” and “Rezet”, is an APT group that targets entities in Russia and the CIS.

The group has remained active through May 2025, consistently targeting Russian companies. A distinctive feature of this threat is that the attackers favor using legitimate third-party software over developing their own malicious binaries. The malicious functionality of the campaign described in this article is implemented through command files and PowerShell scripts. The attackers establish remote access to the victim’s device, steal credentials, and deploy an XMRig crypto miner in the system. Kaspersky research has uncovered new tools within this APT group’s arsenal, which they will elaborate on in this article.

Read more…
Source: Kaspersky


Sign up for our Newsletter
The latest news and insights delivered right to your inbox.


Related:

  • China suspected in hack of journalists at News Corp

    February 4, 2022

    Digital intruders broke into News Corp email accounts and compromised the data of an unspecified number of journalists, the company disclosed Friday. The media firm’s internet security adviser said the hack was likely aimed at gathering intelligence for Beijing’s benefit. News Corp, which publishes the Wall Street Journal, said the breach was discovered in late January and ...

  • Indicators of Compromise Associated with LockBit 2.0 Ransomware

    February 4, 2022

    LockBit 2.0 operates as an affiliate-based Ransomware-as-a-Service (RaaS) and employs a wide variety of tactics, techniques, and procedures (TTPs), creating significant challenges for defense and mitigation. LockBit 2.0 ransomware compromises victim networks through a variety of techniques, including, but not limited to, purchased access, unpatched vulnerabilities, insider access, and zero day exploits. After compromising a victim ...

  • Airport services firm Swissport reports ransomware incident

    February 4, 2022

    Swiss airport management service Swissport reported a ransomware attack affecting its IT systems on Friday. The company said the ransomware attack targeted its IT infrastructure. The group behind the attack was not named. Also: Prosecutors investigating cyberattacks affecting multiple Belgian and Dutch ports “The attack has been largely contained, and we are working actively to fully resolve the ...

  • Operation EmailThief: Zero-day XSS vulnerability in Zimbra email platform revealed

    February 4, 2022

    Researchers have uncovered an active campaign exploiting a zero-day vulnerability in the Zimbra email platform. Zimbra is an email platform available under an open source license. According to the developer, the platform supports hundreds of millions of mailboxes located in 140 countries. On February 3, cybersecurity researchers from Volexity, Steven Adair and Thomas Lancaster, said the system ...

  • What Does an Internal Attack Resulting in a Data Breach Look Like in Today’s Threat Landscape?

    February 3, 2022

    A common scenario is one in which an attacker gains access to an internal network via a compromised workstation that has been infected with malware, invariably via a social engineering email attack. No enterprise is immune to this type of insider attack. We all, at some point, took the bait and clicked unsolicited links masquerading ...

  • Codex Exposed: Helping Hackers in Training?

    February 3, 2022

    In June 2020, OpenAI released version 3 of its Generative Pre-trained Transformer (GPT-3), a natural language transformer that took the tech world by storm with its uncanny ability to generate text seemingly written by humans. But GPT-3 was also trained on computer code, and recently OpenAI released a specialized version of its engine, named Codex, ...