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The DFIR Report

Real Intrusions by Real Attackers, The Truth Behind the Intrusion

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Thursday, May 15, 2025
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Search Results for: bloodhound

Nitrogen Campaign Drops Sliver and Ends With BlackCat Ransomware
blackcat cobaltstrike ransomware sliver

Nitrogen Campaign Drops Sliver and Ends With BlackCat Ransomware

editor September 30, 2024

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
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BlackSuit Ransomware

editor August 26, 2024

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
alphv cobaltstrike icedid ransomware

IcedID Brings ScreenConnect and CSharp Streamer to ALPHV Ransomware Deployment

editor June 10, 2024

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
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From IcedID to Dagon Locker Ransomware in 29 Days

editor April 29, 2024

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

Malicious ISO File Leads to Domain Wide Ransomware
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Malicious ISO File Leads to Domain Wide Ransomware

editor April 3, 2023

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

SEO Poisoning – A Gootloader Story
cobaltstrike gootloader lazagne psexec

SEO Poisoning – A Gootloader Story

editor May 9, 2022

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

2021 Year In Review
Uncategorized

2021 Year In Review

editor March 7, 2022

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

IcedID to XingLocker Ransomware in 24 hours
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IcedID to XingLocker Ransomware in 24 hours

editor October 18, 2021

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

Cobalt Strike, a Defender’s Guide
cobaltstrike Tools

Cobalt Strike, a Defender’s Guide

editor August 29, 2021

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

BazarCall to Conti Ransomware via Trickbot and Cobalt Strike
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BazarCall to Conti Ransomware via Trickbot and Cobalt Strike

editor August 1, 2021

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

Sodinokibi (aka REvil) Ransomware
adfind cobaltstrike icedid ransomware revil Sodinokibi

Sodinokibi (aka REvil) Ransomware

editor March 29, 2021

Intro Sodinokibi (aka REvil) has been one of the most prolific ransomware as a service (RaaS) groups over the last couple years. The ransomware family was purported to be behind … Read More

Trickbot Still Alive and Well
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Trickbot Still Alive and Well

editor January 11, 2021

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

Tricky Pyxie
cobaltstrike pyxie trickbot

Tricky Pyxie

editor April 30, 2020

Trickbot has been seen often as a payload dropped by other malware like Emotet, and has been seen dropping many payloads, most notably ransomware. But while Emotet sleeps it may … Read More

bloodhoundcobalt strikepyxietrickbot

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