Threat Research

Keep up with the latest cybersecurity threats with our analysis and tutorials.

Kelihos and the Ransomware Ecosystem

Botnets have been a serious problem on the web for more than 15 years, and as the network has changed, botnet operators have had to adapt in order to continue making money. While launching DDoS attacks on demand once was the main revenue stream for these cybercriminals, things have changed in recent years to include the paid installation of ransomware, banking trojans, and other types of malware.

Ransomware Winter is Coming

While most of America was emerging from a tryptophan-induced coma on Friday morning, the security team at San Francisco’s Municipal Transportation Agency was waking up to find that ransomware had infected hundreds of the organization’s computers.


Stopping Cyber Threats: Your Field Guide to Threat Hunting