Ibrahim Saud
@tektrixIndiaCompletionist
2 followers18,458 downloads7,120 copies47 likes38,570 views
11,679 detections
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Detects evidence of an Adversary-in-the-Middle (AiTM) phishing attack where a user sign-in results in specific error codes (50074: MFA required; 50140: Keep-me-signed-in interrupted), followed by rapid enumeration of key M365 applications (OfficeHome, My Apps, My SignIns) using the same session/user-agent, signifying post-authentication reconnaissance via stolen tokens.
Detects anomalous usage of the OAuth 2.0 Device Authorization Grant flow (Device Code Flow). This flow is frequently abused by attackers to bypass MFA by tricking users into authenticating an attacker-controlled device or session, potentially leading to token theft or unauthorized access to sensitive enterprise applications.
Detects internal Microsoft Teams messages containing lures related to passkey or SSO enrollment, which is indicative of a compromised account attempting to perform lateral phishing to harvest credentials or bypass multi-factor authentication.
Detects the execution of REAgentC.exe with the /disable command-line argument. This utility is used to manage the Windows Recovery Environment (WinRE). Adversaries often disable WinRE to prevent system recovery and impede incident response, often as a prelude to data destruction or ransomware attacks.
Detects instances where PowerShell or PowerShell ISE performs suspicious process injection activities, specifically targeting executables such as csc.exe, chrome.exe, msedge.exe, or SearchIndexer.exe, or utilizes specific remote thread/memory allocation functions.
This rule detects Git repository modification events (such as pushes, branch creation, or reference creation) where the reference name matches a hexadecimal string (often indicative of a specific commit hash being pushed as a branch or tag) and the host is not github.com. This may indicate suspicious repository activity or interaction with non-standard or unauthorized code repositories.
Detects a sequence of multiple VPN authentication failures from a single IP address followed by a successful authentication within a 10-minute window, which is indicative of a successful credential brute force attack.
Detects a sequence of multiple VPN authentication failures from a single IP address followed by a successful authentication within a 10-minute window, which is indicative of a successful credential brute force attack.
Detects the execution of the Windows Event Utility (wevtutil.exe) with the 'cl' (clear-log) command, specifically targeting multiple critical event logs simultaneously. This behavior is indicative of anti-forensic activity aimed at obfuscating post-compromise actions, as seen in the Settra ransomware campaign.
Detects Git checkout operations executed by AI coding agent processes that specify a full 40-character commit hash or use 'FETCH_HEAD'. This behavior is indicative of potential supply chain attacks, specifically the 'Plugin4Shell' vulnerability, where malicious actors attempt to force the agent to checkout arbitrary, potentially malicious, repository references.
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