Security
Pylocky Unlocked: Cisco Talos releases PyLocky ransomware decryptor
PyLocky is a family of ransomware written in Python that attempts to masquerade as a Locky variant. This ransomware will encrypt all files on a victim machine before demanding that the user pay a ransom to gain access to their decrypted files. To combat this ransomware, Cisco Talos is releasing a fr…
Why we want users’ feedback on Snort rule documentation
Today, Talos is launching a new community survey to solicit feedback on SNORTⓇ documentation. When Snort alerts the end user, the rule documentation is their first and possibly only avenue to find information on malicious traffic in their network. We know this can be better, and we want your help in…
Microsoft Patch Tuesday — January 2019: Vulnerability disclosures and Snort coverage
Microsoft released its monthly security update today, disclosing a variety of vulnerabilities in several of its products. The latest Patch Tuesday covers 49 vulnerabilities, seven of which are rated “critical,” 40 that are considered “important” and one that is “moderate.” This release also includes…
Security Vigilance Never Rests: Moving to Active Threat Detection
Few things are as dynamic as cybersecurity. Modern networks have become increasingly sophisticated and complex. Today’s network extends to myriad devices fueled by a mobile workforce and more organizations are shifting workloads to the cloud as they move towards a more digitized future. A diversifyi…
Moving Towards The Zero Trust Cybersecurity Framework – A Practical Approach
The original Zero Trust model was conceived by Forrester, and leveraged by Google as part of their BeyondCorp initiative. Gartner has their framework called Continuous Adaptive Risk and Trust Assessment (aka. CARTA). These trust-centric approaches shift access decisions based on network topology to…
Vulnerability Spotlight: Multiple privilege escalation vulnerabilities in CleanMyMac X
Tyler Bohan of Cisco Talos discovered these vulnerabilities. Executive summary Today, Cisco Talos is disclosing several vulnerabilities in MacPaw’s CleanMyMac X software. CleanMyMac X is a cleanup application for Mac operating systems that allows users to free up extra space on their machines by sca…
Threat Roundup for Dec. 14 to Dec. 21
Today, Talos is publishing a glimpse into the most prevalent threats we’ve observed between Dec. 14 and Dec. 21. As with previous roundups, this post isn’t meant to be an in-depth analysis. Instead, this post will summarize the threats we’ve observed by highlighting key behavioral…
Submissions for talks at the 2019 Talos Threat Research Summit are now open
Cisco Talos is happy to announce that the Talos Threat Research Summit is returning in 2019. This time, we are expanding the number of attendees to 500 — double what we had last year. Next year’s conference will take place on June 9 in San Diego, Calif. — the same day that Cisco Live! kicks of…
Talos’ Malware Year in Review
It was easy to see a wild year coming in cybersecurity. It started with a bang, with Olympic Destroyer targeting the Winter Olympics in February in an attempt to disrupt the opening ceremonies. Things only got crazier from there, with cryptocurrency miners popping up everywhere, and VPNFilter taking…
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