The original purpose of BitLocker is to address the risks of data theft or exposure from lost, stolen, or improperly decommissioned devices.
Nonetheless, threat actors have found out that this mechanism can be repurposed for malicious ends to great effect. In that incident, the attackers were able to deploy and run an advanced VBS script that took advantage of BitLocker for unauthorized file encryption. We spotted this script and its modified versions in Mexico, Indonesia, and Jordan. In the sections below, we analyze in detail the malicious code obtained during our incident response effort and provide tips for mitigating this kind of threat.
Read more…
Source: Kaspersky
Related:
- Hackers hijacking WhatsApp accounts without any need to crack the authentication
December 21, 2025
Security researchers are warning WhatsApp users about a growing account hijacking technique that does not rely on breaking passwords or bypassing encryption. Attackers exploit WhatsApp’s legitimate device-linking feature to quietly attach their own browser to a victim’s account. Once linked, the attacker can read messages in real time, download shared media, and send messages that appear ...
- Data breach exposes 400,000 bank customers’ information
December 20, 2025
A major data breach tied to U.S. fintech firm Marquis is rippling through banks, credit unions and their customers. Hackers broke into Marquis systems by exploiting a known but unpatched vulnerability in a SonicWall firewall, gaining access to deeply sensitive consumer data. At least 400,000 people are confirmed to be affected so far across multiple states. ...
- U.S. DOJ: Ukrainian National Pleads Guilty to Conspiracy to Use Ransomware
December 19, 2025
Earlier today, in federal court in Brooklyn, Artem Stryzhak pleaded guilty to conspiracy to commit fraud and related activity, including extortion, in connection with computers, for his role in a series of international ransomware attacks. Stryzhak, a Ukrainian citizen, was arrested in Spain in June 2024 and extradited to the United States on April 30, ...
- Thailand says Cambodia border fight is also a war on scammers
December 19, 2025
Thailand’s army has recast its deadly clash with Cambodia as a battle against cybercriminals, adding a new motive for bombing runs across the border that it says are aimed at rooting out scammers. Calling the strikes a “war against the scam army,” a military division involved in the border fight said this week it’s on the ...
- Cloud Atlas activity in the first half of 2025: what changed
December 19, 2025
Known since 2014, the Cloud Atlas group targets countries in Eastern Europe and Central Asia. Infections occur via phishing emails containing a malicious document that exploits an old vulnerability in the Microsoft Office Equation Editor process (CVE-2018-0802) to download and execute malicious code. In this report, Kaspersky researchers describe the infection chain and tools that the ...
- CISA and Partners Release Update to Malware Analysis Report BRICKSTORM Backdoor
December 19, 2025
Today, the Cybersecurity and Infrastructure Security Agency (CISA), National Security Agency, and Canadian Centre for Cyber Security released an update to the Malware Analysis Report BRICKSTORM Backdoor with indicators of compromise (IOCs) and detection signatures for additional BRICKSTORM samples. This update provides information on additional samples, including Rust-based samples. These samples demonstrate advanced persistence and defense ...