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Arnold Chan

@slaz
Trusted contributorCompletionist
2 followers2,100 downloads4,386 copies51 likes26,180 views

7,555 detections

Detects activity from Anthropic network range across multiple event types
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
103
Detects activity from Anthropic network range across multiple event types
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
003
Detects activity from Anthropic network range across multiple event types
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
003
Detects potential exfiltration activity by identifying HTTP POST/PUT requests to known suspicious domains, including specific operator-controlled hosts and anonymous file sharing services, as well as the use of HTTP Range headers for bulk API data exfiltration.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
003
Detects the creation of a new AWS S3 bucket followed by a large volume of data uploads (more than 200 objects) within a 2-hour window. The detection focuses on activity attributed to a single identity with limited source IP diversity, which is highly indicative of scripted data staging and potential exfiltration preparation by an unauthorized actor.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
003
Detects the execution of known malicious files associated with the BlueDelta threat group, specifically the HOOKEDGE and HEADLACE malware families, using a curated list of SHA-256 file hashes. Additionally, the rule monitors for the execution of scripts with GUID-based filenames, a common tactic for temporal or staged file deployment.
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Arnold Chan@slaz
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Hunters
2 months ago
002
Matches known HOOKEDGE malware samples attributed to BlueDelta (APT28) via SHA256 hash comparison
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Arnold Chan@slaz
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Hunters
2 months ago
002
Detects execution or file presence associated with HOOKEDGE/HEADLACE malware. This rule uses a dual-approach: matching known malicious file hashes (SHA256) and monitoring for specific script files (bat, vbs, cmd) following a GUID-formatted naming convention typically used by the HOOKEDGE installer chain.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
002
Detects the Kimsuky trojanized .NET installer OrionQuests-Setup.exe that decrypts embedded AES resource OrionSetup.payload.enc to drop a decoy OrionLauncher installer and malicious LNK file
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
000
Detects known malicious files associated with Kimsuky (APT-C-55) Stella_Gary attack chain by MD5 hash: OrionQuests-Setup.exe installer, guide.url.lnk, test.bef_fri, and backdoor payload component
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
000
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