Real Intrusions by Real Attackers, The Truth Behind the Intrusion
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
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
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
Intro Towards the end of July, we observed an intrusion that began with IcedID malware and ended in XingLocker ransomware, a Mountlocker variant. XingLocker made its first appearance in early … Read More
Intro Although IcedID was originally discovered back in 2017, it did not gain in popularity until the latter half of 2020. We have now analyzed a couple ransomware cases in … Read More
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
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
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
In this intrusion, dated May 2023, we observed Truebot being used to deploy Cobalt Strike and FlawedGrace (aka GraceWire & BARBWIRE) resulting in the exfiltration of data and the deployment … Read More
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
As we move into the new year, it’s important to reflect on some of the key changes and developments we observed and reported on in 2022. This year’s year-in-review report … Read More
In this intrusion from August 2022, we observed a compromise that was initiated with a Word document containing a malicious VBA macro, which established persistence and communication to a command … Read More
Many of our reports focus on adversarial Tactics, Techniques, and Procedures (TTPs) along with the tools associated with them. After gaining a foothold in an environment, one challenge for all … Read More
In late August 2022, we investigated an incident involving Ursnif malware, which resulted in Cobalt Strike being deployed. This was followed by the threat actors moving laterally throughout the environment … Read More
In this intrusion from May 2022, the threat actors used BumbleBee as the initial access vector. BumbleBee has been identified as an initial access vector utilized by several ransomware affiliates. … Read More
This report is a companion to the SANS Ransomware Summit 2022 “Can You Detect This” presentation today 6/16/22 @ 14:40 UTC (10:40 AM ET). Slides: SANS Ransomware Summit 2022 – … Read More
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
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
As we come to the end of the first quarter of 2022, we want to take some time to look back over our cases from 2021, in aggregate, and look … Read More
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
Intro In our research, we expose adversarial Tactics, Techniques and Procedures (TTPs) as well as the tools they use to execute their mission objectives. In most of our cases, we … Read More
