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The DFIR Report

Real Intrusions by Real Attackers, The Truth Behind the Intrusion

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Thursday, May 26, 2022

Category: adfind

Sodinokibi (aka REvil) Ransomware
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Sodinokibi (aka REvil) Ransomware

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

Bazar, No Ryuk?
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Bazar, No Ryuk?

January 31, 2021

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
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Trickbot Still Alive and Well

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

Ryuk Speed Run, 2 Hours to Ransom
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Ryuk Speed Run, 2 Hours to Ransom

November 5, 2020

Intro Since the end of September Ryuk has been screaming back into the news. We’ve already covered 2 cases in that timeframe. We’ve seen major healthcare providers, managed service providers, … Read More

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Ryuk in 5 Hours
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Ryuk in 5 Hours

October 18, 2020

Intro The Ryuk threat actors went from a phishing email to domain wide ransomware in 5 hours. They escalated privileges using Zerologon (CVE-2020-1472), less than 2 hours after the initial … Read More

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Ryuk’s Return
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Ryuk’s Return

October 8, 2020

Intro The Ryuk group went from an email to domain wide ransomware in 29 hours and asked for over $6 million to unlock our systems. They used tools such as … Read More

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NetWalker Ransomware in 1 Hour
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NetWalker Ransomware in 1 Hour

August 31, 2020

The threat actor logged in through RDP, attempted to run a Cobalt Strike Beacon, and then dumped memory using ProcDump and Mimikatz. Next, they RDPed into a Domain Controller, minutes … Read More

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