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Showing posts with the label Mimikatz

UK Cybercrime Journal: ACRO Breach Report

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What Happened On 7 August 2026, the UK Information Commissioner's Office (ICO) disclosed that between July 2021 and June 2023, the ACRO Criminal Records Office suffered three separate compromises involving its customer portal website (acro.police.uk). ACRO is a national police unit providing public services such as issuing Police Certificates, International Child Protection Certificates, and processing Subject Access Requests. In March 2023, ACRO was notified about an SQL injection attack that reportedly exposed 15 sets of credentials, the majority of which belonged to its employees. A subsequent forensic investigation uncovered long-term threat actor activity within the website's environment, spanning from 9 July 2021 to 22 June 2023. The website was built on the Kentico CMS and was running version 12.0.0 between September 2019 and March 2023. This version had multiple known vulnerabilities at the time of the incident, but suffered from ambiguity around who was accountable fo...

Unravelling a Mimikatz campaign

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  This is a short blog analyzing some artifacts  left over by a Mimikatz operator's campaign. Background While doing to some internet dumpster-diving (as I like to call it) I came across an open directory belonging to a threat actor's Mimikatz staging server (see Figure 1).  The threat actor's server was hosted on DigitalOcean AS14061  (165[.]232[.]*.*) and a takedown request was submitted by myself to the DigitalOcean Abuse team. Figure 1: Mimikatz opendir The files on the server were not that interesting, most of it was default Mimikatz components from the GitHub and other resources online. The files are available on VirusTotal too if needed. im.ps1 (Invoke-Mimikatz PowerShell script) https://www.virustotal.com/gui/file/1b441fde04d361a6fd7fbd83e969014622453c263107ce2bed87ad0bff7cf13f mimidrv.sys (signed Windows Driver Model (WDM) kernel mode software driver) https://www.virustotal.com/gui/file/f9b01406864ab081aa77eef4ad15cb2dd2f830d1ef54f52622a59ff1aeb05ba5 ...