BlackSuit Ransomware
Key Takeaways In December 2023, we observed an intrusion that started with the execution of a Cobalt Strike beacon and ended in the deployment of BlackSuit ransomware. The threat actor … Read More
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IcedID Brings ScreenConnect and CSharp Streamer to ALPHV Ransomware Deployment
Key Takeaways The DFIR Report Services → Click here to access the DFIR Lab related to this report ← Five new sigma rules were created from this report and added … Read More
From IcedID to Dagon Locker Ransomware in 29 Days
Key Takeaways In August 2023, we observed an intrusion that started with a phishing campaign using PrometheusTDS to distribute IcedID. IcedID dropped and executed a Cobalt Strike beacon, which was … Read More
From OneNote to RansomNote: An Ice Cold Intrusion
Key Takeaways We provide a range of services, one of which is our Threat Feed, specializing in monitoring Command and Control frameworks like Cobalt Strike, Metasploit, Sliver, Viper, Mythic, Havoc, … Read More
Buzzing on Christmas Eve: Trigona Ransomware in 3 Hours
Key Takeaways In late December 2022, we observed threat actors exploiting a publicly exposed Remote Desktop Protocol (RDP) host, leading to data exfiltration and the deployment of Trigona ransomware. On … Read More
NetSupport Intrusion Results in Domain Compromise
NetSupport Manager is one of the oldest third-party remote access tools still currently on the market with over 33 years of history. This is the first time we will report … Read More
From ScreenConnect to Hive Ransomware in 61 hours
In 2022, The DFIR Report observed an increase in the adversarial usage of Remote Management and Monitoring (RMM) tools. When compared to post-exploitation channels that heavily rely on terminals, such … Read More
HTML Smuggling Leads to Domain Wide Ransomware
We’ve previously reported on a Nokoyawa ransomware case in which the initial access was via an Excel macro and IcedID malware. This case, which also ended in Nokoyawa Ransomware, involved … Read More
Emotet Strikes Again – LNK File Leads to Domain Wide Ransomware
In June of 2022, we observed a threat actor gaining access to an environment via Emotet and operating over a eight day period. During this time period, multiple rounds of … Read More
Follina Exploit Leads to Domain Compromise
In early June 2022, we observed an intrusion where a threat actor gained initial access by exploiting the CVE-2022-30190 (Follina) vulnerability which triggered a Qbot infection chain. Qbot, also known … Read More
SEO Poisoning – A Gootloader Story
In early February 2022, we witnessed an intrusion employing Gootloader (aka GootKit) as the initial access vector. The intrusion lasted two days and comprised discovery, persistence, lateral movement, collection, defense … Read More
Trickbot Leads Up to Fake 1Password Installation
Intro Over the past years, Trickbot has established itself as modular and multifunctional malware. Initially focusing on bank credential theft, the Trickbot operators have extended its capabilities. More recently, Trickbot … Read More
BazarCall to Conti Ransomware via Trickbot and Cobalt Strike
Intro This report will go through an intrusion that went from an Excel file to domain wide ransomware. The threat actors used BazarCall to install Trickbot in the environment which … Read More
Bazar, No Ryuk?
Intro In the fall of 2020, Bazar came to prominence when several campaigns delivered Ryuk ransomware. While Bazar appeared to drop-off in December, new campaigns have sprung up recently, using … Read More