Ibrahim Saud
@tektrixIndiaCompletionist
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11,679 detections
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This rule detects successful sign-in activity to the 'My Sign-Ins' application where the device is not marked as trusted or the sign-in carries a non-zero risk level. This behavior may indicate an adversary attempting to gain access to account security settings or sensitive portal information using compromised or unmanaged devices.
Detects anomalous, systematic enumeration of multiple Microsoft Graph API resource categories (e.g., users, groups, applications, sites) by a single identity, IP, or application within a short time window. This activity often indicates an adversary performing discovery or reconnaissance against the M365 tenant environment.
Detects a sequence of authentication events indicative of Adversary-in-the-Middle (AiTM) phishing, where a user session experiences MFA-related errors (50074, 50140) followed by a successful sign-in (0). This pattern suggests an adversary proxying credentials and MFA requests in real-time.
Detects anomalous sign-in behavior following a successful device code authentication. The rule identifies instances where a successful device code login is immediately followed by a sign-in session using a different IP address or device name for the same account, indicating potential session theft or adversary-in-the-middle phishing activity.
Detects anomalous, high-volume file access or download activity in Microsoft SharePoint Online or OneDrive for Business originating from a 'python-httpx' user agent. This pattern often indicates automated data collection or exfiltration attempts using programmatic tools.
Detects anomalous, low-volume data access behavior within cloud applications (such as file downloads, previews, or mail access) that is sustained over an extended period. This pattern often indicates slow, deliberate data exfiltration designed to evade volume-based detection thresholds.
Detects anomalous Microsoft Graph API usage patterns where a single account interacts with a high number of unique request paths using common API pagination or search parameters, indicating potential resource enumeration or reconnaissance activity.
Detects the creation of known backdoor accounts 'p2pwn' or 'p2password' on Dahua devices, which are associated with the exploitation of CVE-2024-39943. This activity indicates an attacker attempting to establish persistent unauthorized access that may survive factory resets.
This rule detects DNS queries for specific lookalike domains (e.g., *uzrailwaystax.com, *devon-uz.com) known to be used as Command and Control (C2) infrastructure by the threat actors associated with BloodAlchemy and the SpiceRAT malware.
Detects process creation events containing command-line arguments indicative of an OAuth 2.0 device code flow, commonly used in consent phishing or device code phishing attacks to hijack account access via a malicious OAuth application registration.
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