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
Search Results for: getsystem
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
SEO Poisoning to Domain Control: The Gootloader Saga Continues
Key Takeaways More information about Gootloader can be found in the following reports: The DFIR Report, GootloaderSites, Mandiant, Red Canary, & Kroll. An audio version of this report can be … Read More
Lets Open(Dir) Some Presents: An Analysis of a Persistent Actor’s Activity
This report is a little different than our typical content. We were able to analyze data from a perspective we typically don’t get to see… a threat actor’s host! In … 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
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
BumbleBee Zeros in on Meterpreter
In this intrusion from May 2022, the threat actors used BumbleBee as the initial access vector from a Contact Forms campaign. We have previously reported on two BumbleBee intrusions (1, … Read More
BumbleBee Roasts Its Way to Domain Admin
In this intrusion from April 2022, the threat actors used BumbleBee as the initial access vector. BumbleBee is a malware loader that was first reported by Google Threat Analysis Group … Read More
SANS Ransomware Summit 2022, Can You Detect This?
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
Will the Real Msiexec Please Stand Up? Exploit Leads to Data Exfiltration
In this multi-day intrusion, we observed a threat actor gain initial access to an organization by exploiting a vulnerability in ManageEngine SupportCenter Plus. The threat actor, discovered files on the … 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
From Zero to Domain Admin
Intro This report will go through an intrusion from July that began with an email, which included a link to Google’s Feed Proxy service that was used to download a … Read More
Cobalt Strike, a Defender’s Guide
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
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
IcedID and Cobalt Strike vs Antivirus
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
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
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
Trickbot Still Alive and Well
In October of 2020, the group behind the infamous botnet known as Trickbot had a bad few days. The group was under concerted pressure applied by US Cyber Command infiltrating … Read More