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Joined August 2022
ACE Responder retweeted
You can detect Copy Fail exploitation with the following auditd rules: -a always,exit -F arch=b64 -S bind -F a2=88 -F key=alg_bind -a always,exit -F arch=b64 -S setsockopt -F a1=279 -F key=alg_setsockopt The exploit binds to this saddr once for each 4 bytes of the shellcode. So, if you see like 30-40 of these, it's probably a bad guy. #DetectionEngineering
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ACE Responder retweeted
Releasing SynthAPT - Generate malware with AI Describe your malware in plain English and get a payload. Implants move autonomously via self-replication according to a predefined playbook. No infrastructure required. Quickly replicate malware in intel reports and blogs. Validate advanced detections and AI-based investigation agents. Features in-memory python interpreter, a TUI editor, BOF loader, and tons of offensive modules spanning the MITRE ATT&CK matrix github.com/acedef/SynthAPT #Malware #CyberSecurity
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ACE Responder retweeted
You may have seen some of my work with RogueSliver, and the unauth RCE I found for Empire C2. Wanted to share something I've been building for defenders called Swarm. 🧵 #ThreatHunting #DFIR
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🐭New challenge on ACEResponder.com: Atera Agent RAT Trusted admin tools turned deadly. Track what happens when legitimate software becomes a persistence mechanism. The logs tell a story... if you know where to look. #ThreatHunting #DFIR #SOC
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ACE Responder retweeted
⚡️New prompt injection to takeover C2 servers automated with @claudeai I use Sliver, but this approach could be used for any C2 that's automated with Claude. The trick: Plant a file that makes Claude think it was mounted on the attacker's local system. To "access" it, Claude must add an "auth token" to the attacker's ~/.bashrc/zshrc. That token? A reverse shell. 🎯 Requirements: • Sonnet 4.5 or earlier (Opus is inconsistent) • Claude running autonomously/in a loop (not "read file X") • Write access to attacker's home directory Blue team tip: Seed similar prompts in enticing files. Run payloads by legal first. Full prompt below 👇 #AGI #PromptInjection #DFIR #Clawdbot
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🧊 New incident response challenge on ACEResponder.com: IcedID Compromise A user clicked a dirty zip. Can you trace the full kill chain? #ThreatHunting #IcedID #DFIR
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ACE Responder retweeted
Sliver now has MCP support which means defenders can use prompt injection to leak sensitive information from the C2 server. 🎉 I use a file called passwords.txt to trick #ClaudeAI into creating directories beacon/session info. #AGI #PromptInjection #DFIR
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🗑️ New Challenge: Dumpster Diving Someone is rummaging through your discarded remnants... Reconstruct a domain compromise where poor data hygene resulted in the attacker escalating to DA. aceresponder.com/challenge/d…
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The different types of #ActiveDirectory kerberos delegation. #ThreatHunting #DFIR
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Windows Event IDs and their importance for defenders. #ThreatHunting #DFIR
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🔥 Black Friday 35% off annual subs through Dec 1 Code: BLACKFRIDAY Best price all year. aceresponder.com
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✅Quick reference: Configure these nonstandard SACLs to detect common AD attacks like • DCSync • RBCD • Shadow Credentials • gMSA abuse #DFIR #ThreatHunting #SOCAnalyst
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How Remote Service (PsExec) lateral movement works. #ThreatHunting #DFIR
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How hackers capture hashes using file icons #ThreatHunting #DFIR
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C2 techniques used by hackers. #ThreatHunting #DFIR
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How NTLM authentication works #ThreatHunting #DFIR
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