Ibrahim Saud
@tektrixIndiaCompletionist
2 followers18,458 downloads7,067 copies47 likes38,452 views
11,679 detections
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10
Detects network activity associated with ORAX Phishing-as-a-Service (PhaaS), specifically identifying fake Cloudflare security-verification pages and emoji-based CAPTCHA gates used as anti-analysis techniques to frustrate automated sandboxing.
Detects successful administrative logins to VMware ESXi, vCenter, or related VDI infrastructure (Horizon) by users who have recently performed a password or MFA reset. This pattern is indicative of a helpdesk-based social engineering attack (vishing) or credential compromise where the attacker regains account access and immediately pivots to critical virtualization management infrastructure to facilitate ransomware deployment.
Detects potential vishing or account takeover precursor activity where an external or guest Microsoft Teams user, impersonating IT or Help Desk support, communicates with a user who subsequently modifies their credentials or MFA configuration within the same 24-hour period.
Detects instances where an account assigned a help-desk or support role performs an MFA, password, or credential reset on an account tagged as an executive or VIP. This behavior is indicative of social engineering and help-desk impersonation attacks commonly utilized by threat actors to perform rogue MFA takeovers.
This rule detects network traffic patterns associated with the ARToken phishing campaign, specifically identifying access to lure pages hosted on 'workers.dev' domains with 'docviewer' in the hostname and 'turnstile' challenge responses in the HTTP body, which is used for anti-analysis/evasion.
Detects successful Entra ID sign-in events that utilize the OAuth 2.0 device authorization grant (device code) flow. This authentication mechanism is frequently abused by attackers to perform device code phishing (e.g., ARToken attacks), where victims are tricked into entering a malicious user code on a legitimate Microsoft login portal to facilitate token theft.
Detects high-risk administrative actions in Entra ID, such as role assignments, user creation, or password resets, occurring shortly after a user authenticates using the device code flow. This pattern is indicative of a post-compromise takeover where an adversary utilizes a stolen or coerced device code session to escalate privileges.
Detects phishing emails that utilize document-themed subjects (e.g., invoices, shared documents) containing Windows Internet Shortcut (.url) attachments that redirect users to Cloudflare Workers-based 'docviewer' pages, often linked in conjunction with suspicious SharePoint file shares.
Detects HTTP traffic where a common automated scanner or sandbox user agent triggers an immediate redirect to 'about:blank', a common technique used by phishing kits to hide content from automated security analysis tools.
Detects phishing emails that use common voicemail notification subject lines combined with Mailchimp click-tracking or redirect infrastructure. This combination is often used to bypass traditional email gateway filters by utilizing legitimate marketing service domains to obfuscate final malicious destinations.
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