Fake Zoom Ends in BlackSuit Ransomware
Key Takeaways Case Summary This case from May 2024 started with a malicious download from a website mimicking the teleconferencing application Zoom. When visiting the website and downloading a file … Read More
Category: ransomware
Confluence Exploit Leads to LockBit Ransomware
Key Takeaways Case Summary The intrusion started with the exploitation of CVE-2023-22527, a critical remote code execution vulnerability in Confluence, against a Windows server. The first indication of threat actor … Read More
Cobalt Strike and a Pair of SOCKS Lead to LockBit Ransomware
Key Takeaways Case Summary This intrusion began near the end of January 2024 when the user downloaded and executed a file using the same name (setup_wm.exe) and executable icon, as … Read More
Nitrogen Campaign Drops Sliver and Ends With BlackCat Ransomware
Key Takeaways Contact us today for pricing or a demo! Table of Contents: Case Summary Analysts Initial Access Execution Persistence Privilege Escalation Defense Evasion Credential Access Discovery Lateral Movement Collection Command … Read More
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
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 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
SQL Brute Force Leads to BlueSky Ransomware
In December 2022, we observed an intrusion on a public-facing MSSQL Server, which resulted in BlueSky ransomware. First discovered in June 2022, BlueSky ransomware has code links to Conti and … 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
IcedID Macro Ends in Nokoyawa Ransomware
Threat actors have moved to other means of initial access, such as ISO files combined with LNKs or OneNote payloads, but some appearances of VBA macros in Office documents can … Read More
Malicious ISO File Leads to Domain Wide Ransomware
IcedID continues to deliver malspam emails to facilitate a compromise. This case covers the activity from a campaign in late September of 2022. Post exploitation activities detail some familiar and … 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
Quantum Ransomware
In one of the fastest ransomware cases we have observed, in under four hours the threat actors went from initial access, to domain wide ransomware. The initial access vector for … Read More
Stolen Images Campaign Ends in Conti Ransomware
In this intrusion from December 2021, the threat actors utilized IcedID as the initial access vector. IcedID is a banking trojan that first appeared in 2017, usually, it is delivered … Read More
Diavol Ransomware
In the past, threat actors have used BazarLoader to deploy Ryuk and Conti ransomware, as reported on many occasions. In this intrusion, however, a BazarLoader infection resulted in deployment of … Read More
CONTInuing the Bazar Ransomware Story
In this report we will discuss a case from early August where we witnessed threat actors utilizing BazarLoader and Cobalt Strike to accomplish their mission of encrypting systems with Conti … Read More
Exchange Exploit Leads to Domain Wide Ransomware
In late September 2021, we observed an intrusion in which initial access was gained by the threat actor exploiting multiple vulnerabilities in Microsoft Exchange. The threat actors in this case … 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
Conti Ransomware
Introduction First seen in May 2020, Conti ransomware has quickly become one of the most common ransomware variants, according to Coveware. As per Coveware’s Quarterly Ransomware Report (Q1 2021), Conti … Read More