Ransomware encrypts or steals data to disrupt operations and extort victims, making backups, access controls, and incident response essential.
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Background for this topic.
Ransomware is malware used to deny access to systems or data, usually by encrypting files and demanding payment for decryption. Many operations also steal sensitive information and threaten to publish it, so an attack can create both an availability crisis and a privacy or disclosure risk. Initial access may involve phishing, stolen credentials, exposed remote services, or exploitation of unpatched vulnerabilities; attackers may then move through the network before deploying the payload.
Defenses should combine vulnerability management, phishing-resistant authentication where practical, endpoint and network monitoring, and backups that are isolated from routine administrator access and regularly tested for recovery. Organizations should also limit privileges and segment critical systems to reduce the blast radius. An incident requires rapid containment, preservation of forensic evidence, restoration from known-good backups, and assessment of notification, legal, and regulatory obligations. Threat intelligence can help identify relevant criminal infrastructure or tactics, but it does not replace sound access control, patching, detection, and recovery practices.
Security analysts at ASEC have discovered a new wave of attacks targeting vulnerable Microsoft SQL servers, involving the deployment of a ransomware strain named FARGO. [...]
This week we saw some embarrassment for the LockBit ransomware operation when their programmer leaked a ransomware builder for the LockBit 3.0 encryptor. [...]
The BlackCat ransomware (aka ALPHV) isn't showing any signs of slowing down, and the latest example of its evolution is a new version of the gang's data exfiltration tool used for double-extortion attacks. [...]
The LockBit ransomware operation has suffered a breach, with an allegedly disgruntled developer leaking the builder for the gang's newest encryptor. [...]
The Hive ransomware operation claimed responsibility for an attack on the New York Racing Association (NYRA), which previously disclosed that a cyber attack on June 30, 2022, impacted IT operations and website availability and compromised member data. [...]
Microsoft says tamper protection will soon be turned on by default for all enterprise customers in Microsoft Defender for Endpoint (MDE) for better defense against ransomware attacks. [...]
The operators of the Chromeloader adware are evolving their attack methods and gradually transforming the low-risk tool into a dangerous malware loader, seen dropping ransomware in some cases. [...]