Arnold Chan
@slazTrusted contributorCompletionist
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7,544 detections
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Detects inbound emails masquerading as reputable advisory firms (PwC or KPMG) using lookalike sender domains, combined with wire-transfer fraud phrases in the subject line. Correlates with identity logon telemetry for the same fraudulent WhatsApp Business phone number, enabling detection across both email and authentication channels. Note: message body content is not available in the EmailEvents schema, so fraud-phrase matching is subject-only.
Detects forged NDA documents used in Phantom Deal M&A fraud campaign, requiring co-occurrence of impersonated advisory firm branding, secrecy-clause language restricting communication to personal channels, and M&A-fraud-specific wire/payment indicators rather than secrecy-clause phrasing alone
Detects potential Business Email Compromise (BEC) related to 'Phantom Deal' fraud. The rule identifies email threads where a user receives an urgent request for proof of payment (MT103/UETR) within 72 hours of an email discussion involving both wire transfer/payment keywords and M&A/deal context.
Detects potential Business Email Compromise (BEC) related to 'Phantom Deal' fraud. The rule identifies email threads where a user receives an urgent request for proof of payment (MT103/UETR) within 72 hours of an email discussion involving both wire transfer/payment keywords and M&A/deal context.
Detects high-frequency, repeated access to a specific fraud-tracking or canary token link by sources utilizing rotating VPNs or proxies over an extended period. This behavior is indicative of automated probing or credential validation attempts associated with the Phantom Deal campaign.
Detects GitLab CI job shell commands that redirect the environment to a .tmp file, a pattern identified in the GnuTLS GitLab token leak.
Detects CI/CD job activity referencing shell commands that redirect the entire environment to a file (e.g. 'env > out.tmp'), the exact pattern that caused a GitLab CI job in the openconnect/ocserv project to dump secrets into a public build artifact, leaking a high-privilege personal access token with Owner access to GnuTLS and 55 other critical projects.
Detects CI/CD job activity referencing shell commands that redirect the entire environment to a file (e.g. 'env > out.tmp'), the exact pattern that caused a GitLab CI job in the openconnect/ocserv project to dump secrets into a public build artifact, leaking a high-privilege personal access token with Owner access to GnuTLS and 55 other critical projects.
Detects inbound emails containing keywords associated with known ransomware extortion tactics (e.g., mention of specific ransomware names, data leaks, and payment demands). The rule filters for inbound traffic to identify external threats while excluding potential internal-generated traffic.
This rule detects rapid enumeration of Azure AD identity and configuration components by identifying a burst of specific, high-level administrative API calls (Get user flows, Get API connectors, Get identity providers, Get user attributes) within a short window. This pattern is indicative of reconnaissance activities aimed at mapping out the identity provider configuration.
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