article thumbnail

News alert: SquareX discloses nasty browser-native ransomware that’s undetectable by antivirus

The Last Watchdog

Ransomware attacks typically involve tricking victims into downloading and installing the ransomware, which copies, encrypts, and/or deletes critical data on the device, only to be restored upon the ransom payment. Traditionally, the primary target of ransomware has been the victims device.

Antivirus 147
article thumbnail

On the Irish Health Services Executive Hack

Schneier on Security

Antivirus software triggered numerous alerts after detecting Cobalt Strike activity but these were not escalated. The antivirus server was later encrypted in the attack). across the IT estate and reliance was placed on a single antivirus product that was not monitored or effectively maintained with updates across the estate.

Antivirus 351
Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

article thumbnail

Adventures in Contacting the Russian FSB

Krebs on Security

In the process of doing so, I encountered a small snag: The FSB’s website said in order to communicate with them securely, I needed to download and install an encryption and virtual private networking (VPN) appliance that is flagged by at least 20 antivirus products as malware. The FSB headquarters at Lubyanka Square, Moscow.

Antivirus 333
article thumbnail

Kasseika ransomware uses antivirus driver to kill other antiviruses

Bleeping Computer

A recently uncovered ransomware operation named 'Kasseika' has joined the club of threat actors that employs Bring Your Own Vulnerable Driver (BYOVD) tactics to disable antivirus software before encrypting files. [.]

Antivirus 123
article thumbnail

New Banshee Stealer Variant Bypasses Antivirus with Apple’s XProtect-Inspired Encryption

The Hacker News

Once thought dormant after its source code leak in late 2024, this new iteration introduces advanced string encryption inspired by Apple's XProtect," Check Point Research said in a new analysis shared with The Hacker News. This development allows it to

article thumbnail

New advanced FIN7’s Anubis backdoor allows to gain full system control on Windows

Security Affairs

Delivered via phishing and hosted on compromised SharePoint sites, it remains undetected by most antivirus solutions, posing a serious security risk. The backdoor, targeting Windows, uses AES-CBC encryption with base64 encoding and loads the payload via the exec function. ” concludes the report.

Antivirus 127
article thumbnail

‘Tis the season for protecting your devices with Webroot antivirus

Webroot

Whether you purchase a new device or receive one as a gift, now is the time to consider the importance of protecting it with an antivirus program. What is antivirus? Antivirus programs accomplish this by conducting behavior-based detection, scans, virus quarantine and removal. Do I really need antivirus? In a word, yes.

Antivirus 134