#domaincontroller — Public Fediverse posts

The Gentlemen & SystemBC: A Sneak Peek Behind the Proxy

The Gentlemen ransomware-as-a-service program has rapidly expanded since mid-2025, claiming over 320 victims with 240 attacks occurring in early 2026. The service provides multi-platform lockers for Windows, Linux, NAS, BSD, and ESXi, enabling comprehensive coverage of corporate environments. During an incident response engagement, an affiliate deployed SystemBC proxy malware for covert tunneling and payload delivery. Analysis of the SystemBC command-and-control server revealed a botnet of over 1,570 victims, primarily corporate and organizational targets. The intrusion progressed from domain controller compromise through credential validation, remote execution via administrative shares, and deployment of Cobalt Strike payloads. Attackers disabled defenses, established persistence through scheduled tasks and services, and ultimately deployed ransomware via Group Policy. The operation demonstrates sophisticated lateral movement capabilities, defense evasion techniques, and integration of mature post-exploit...

Pulse ID: 69e63f93a0ddbd53fcab3f51
Pulse Link: https://otx.alienvault.com/pulse/69e63f93a0ddbd53fcab3f51
Pulse Author: AlienVault
Created: 2026-04-20 15:00:35

Be advised, this data is unverified and should be considered preliminary. Always do further verification.

#CobaltStrike #CyberSecurity #DomainController #InfoSec #Linux #Malware #OTX #OpenThreatExchange #Proxy #RAT #RansomWare #RansomwareAsAService #Troll #Windows #bot #botnet #AlienVault

𝗦𝗶𝗺𝗽𝗹𝗶𝗳𝗶𝗲𝗱 𝗱𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁 𝘄𝗶𝘁𝗵 𝗗𝗲𝗳𝗲𝗻𝗱𝗲𝗿 𝗳𝗼𝗿 𝗜𝗱𝗲𝗻𝘁𝗶𝘁𝘆

"Microsoft Defender for Identity is an essential part of a modern security practice, helping your organization protect against, and respond to, identity-based threats. In this blog we will show you the simple steps for deploying Microsoft Defender for Identity within your environment."

https://techcommunity.microsoft.com/t5/microsoft-365-defender-blog/simplified-deployment-with-defender-for-identity/ba-p/3966035

#defenderforidentity #mdi #microsoft #microsoftsecurity #defender #adfs #domaincontroller #activedirectory #itdr #azure #adfs #adcs #deployment