Ibrahim Saud
@tektrixIndiaCompletionist
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11,679 detections
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Detects the execution of reg.exe with the 'save' command to extract the SAM, SYSTEM, or SECURITY registry hives to disk. This technique is commonly used by attackers to offline extract credential hashes, facilitating pass-the-hash attacks and lateral movement.
Detects the execution of PowerShell with encoded commands (e.g., -EncodedCommand or -enc) combined with common download cradle indicators such as IEX, Net.WebClient, or DownloadString. This combination is highly indicative of fileless malware execution, initial access payload staging, or defense evasion techniques often employed by threat actors to bypass command-line monitoring.
Detects unauthorized directory replication requests (DS-Replication-Get-Changes and DS-Replication-Get-Changes-All) made against Active Directory by a user or computer account that is not a domain controller. This behavior is indicative of a DCSync attack, typically performed by tools like Mimikatz to extract password hashes for all domain accounts.
Detects the abuse of the built-in Windows utility 'certutil.exe' to download remote files using URL cache functionality or to deobfuscate base64-encoded payloads. This is a common LOLBin (Living-off-the-Land Binary) technique used in phishing loaders, malware delivery, and post-exploitation toolkits.
Detects the creation of WMI permanent event subscriptions, including the instantiation of __EventFilter, __EventConsumer, and __FilterToConsumerBinding classes. This mechanism is frequently used by adversaries for fileless and reboot-resilient persistence, as it allows for arbitrary code execution triggered by system events.
This rule detects potential Kerberoasting activity by monitoring Windows Security Event ID 4769 for TGS service ticket requests using weak RC4 encryption (etype 0x17). It correlates these individual requests to identify a single user account requesting an abnormally high volume of service tickets within a 10-minute window, which is highly characteristic of automated SPN enumeration and cracking tools like Rubeus or Impacket.
Detects the granting of OAuth application permissions or app role assignments in Azure AD/Entra ID that include high-privilege scopes such as Mail.Read, Directory.ReadWrite.All, or offline_access. This behavior is characteristic of consent phishing attacks, where adversaries trick users into granting permissions to a malicious application to maintain persistent access to resources like email or tenant directories.
Detects potential AWS IAM privilege escalation attempts by identifying suspicious modifications to IAM policies, roles, or trust relationships, as well as unauthorized role assumption events. This rule monitors for activities such as attaching high-privilege policies (e.g., AdministratorAccess), creating new policy versions, and modifying trust policies to allow unexpected principals, which are common indicators of post-compromise activity designed to expand access within an AWS environment.
Detects lateral movement activities involving the use of PsExec-style tools or the manual creation of remote services to execute commands. This behavior often leverages SMB admin shares (ADMIN$, C$) to drop and execute binaries or scripts, a technique frequently observed in ransomware campaigns and red team engagements.
Detects the execution of legitimate developer utilities msbuild.exe, regasm.exe, and regsvcs.exe in manners consistent with malicious proxy execution. This includes the use of inline tasks in project files, remote network-sourced project files, or specific command-line arguments (such as /codebase or /unregister) that suggest the abuse of these binaries to execute arbitrary code or bypass application control mechanisms, while excluding known legitimate developer-related parent processes and build workflows.
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