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Sharing Cyclops Blink Threat Intelligence with the Community

March 23, 2022 By Corey Nachreiner

At WatchGuard, we understand the importance of sharing threat intelligence with the information security (infosec) community when safe and appropriate. Not only does this information sharing help to directly defend against known threats, but it also helps the community at large learn from the attacks found in the wild, and appropriately adjust detection and defense strategies. … [Read more...]

MedusaLocker Ransomware Will Bypass Most Antivirus Software

May 19, 2020 By Trevor Collins

  Last week we came across ransomware with unique evasion techniques in a new variant, or possibly a copycat, of the MedusaLocker ransomware. MedusaLocker ransomware, first seen in September 2019, came with a batch file to evade detection. Batch files contain script commands running in a Command Prompt on Windows machines and have the .bat extension. In the malicious … [Read more...]

HSTS – A Trivial Response to sslstrip

November 5, 2019 By Ryan Estes

SSL Connection

Intro HTTP Strict Transport Security (HSTS) is an HTTP security mechanism that allows web sites to declare themselves as accessible only via secure connections and for users to direct user agents (UAs), or your browser, to interact with web sites only over a secure connection. A "secure connection" in this case means an SSL/TLS encrypted HTTP connection, or HTTPS. This … [Read more...]

Green Mountain Grill Security Analysis

May 31, 2019 By Trevor Collins

Automated smokers like the Green Mountain Grill (GMG) Davy Crockett are great for smoking different meats and other foods without having to tend the grill during the entire process.  GMG has pushed this idea further with a WIFI controller that monitors and controls the grill. Now, one doesn’t even need to leave the couch to maintain the grill. Unfortunately though, this … [Read more...]

Indicators of RDP Brute Force Attacks

December 5, 2017 By Teri Radichel

rdp bruteforce

I have been investigating an incident involving two EC2 instances on AWS that were infected with ransomware, cryptocurrency miners, and other types of malware. Sounds scary, right?! Well actually, the approaches that the attackers took to get onto the hosts do not appear to be that sophisticated, and this type of attack could occur in any environment, not just in the cloud. … [Read more...]

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