Ibrahim Saud
@tektrixIndiaCompletionist
2 followers18,457 downloads7,056 copies47 likes38,418 views
11,679 detections
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Detects anomalous, oversized fragmented UDP traffic (exceeding 1400 bytes) targeting or originating from the MikroTik btest service port (2000). This behavior is indicative of attempts to trigger integer underflows, system crashes, or uninitialized memory disclosures within the btest protocol implementation.
Detects repetitive network traffic to the Slack API endpoint '/api/conversations.history' using the 'Go-http-client' User-Agent. This behavior is indicative of the Graphalgo RAT polling Slack for command-and-control (C2) instructions.
This rule detects potential attempts to exploit an SSH pre-authentication rekey or authentication bypass vulnerability (CVE-2026-67279) in MikroTik RouterOS devices. It monitors incoming TCP traffic on port 22 that contains the 'ROSSSH' signature followed by specific binary sequences indicative of exploitation attempts.
Detects high-risk destructive database operations (DROP, TRUNCATE, or UPDATE) on sensitive tables executed within six hours of a large outbound data transfer from the same host, a pattern indicative of anti-forensic database wiping following data exfiltration.
This rule detects unauthorized attempts to extract credentials from the Local Security Authority Subsystem Service (LSASS) process. It monitors for two distinct techniques: non-standard processes opening handles to lsass.exe with sensitive access rights (credential-dumping) and the use of rundll32.exe to invoke the MiniDump function within comsvcs.dll against lsass.exe.
Detects directory replication requests (Event ID 4662) using DS-Replication-Get-Changes or DS-Replication-Get-Changes-All GUIDs initiated by a computer account that is not a recognized domain controller. This behavior is indicative of a DCSync attack, where an adversary attempts to pull sensitive credential data directly from Active Directory.
This rule detects potential AS-REP Roasting activity by monitoring Windows Event ID 4768 (TGT Request). It identifies multiple Kerberos AS-REQ requests from a single IP address within a 10-minute window, where the PreAuthType is 0 (indicating no pre-authentication) and the encryption type is RC4 (0x17 or 23). This behavior is characteristic of enumeration and exploitation tools such as Rubeus or Impacket's GetNPUsers.py, which attempt to obtain extractable TGTs for accounts that do not require Kerberos pre-authentication.
This rule detects potential Kerberos Golden Ticket activity by monitoring Windows Event IDs 4768 (TGT Request) and 4769 (TGS Request) for indicators of forgery. Specifically, it flags TGT requests that utilize RC4 encryption ('0x17') in environments where AES is expected, excluding standard krbtgt account activity.
This rule detects the creation of services or execution of processes associated with remote management tools like PsExec or PAExec. It looks for common service names (PSEXESVC, PAExec), suspicious executable paths in temporary directories (e.g., \Temp\, \AppData\Local\Temp\), or command-line patterns indicating remote execution via ADMIN$ shares. These indicators are frequently used by adversaries for lateral movement and remote command execution.
Detects the use of native Windows utilities (vssadmin, wmic, wbadmin, bcdedit) to inhibit system recovery by deleting shadow copies, backup catalogs, or disabling automatic recovery features. This behavior is commonly observed in ransomware attacks.
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