Ibrahim Saud
@tektrixIndiaCompletionist
2 followers18,458 downloads7,116 copies47 likes38,542 views
11,679 detections
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Detects execution of WMI or PowerShell queries by HTA, WScript, or CScript processes to gather system information such as OSLanguage, BIOS, or hardware identifiers. This behavior is indicative of environment-awareness checks used by the Casbaneiro/Ousaban banking trojan to identify sandbox or virtualization analysis environments before proceeding with the infection.
This rule detects a multi-stage attack chain targeting a single user within a 2-hour window. It identifies the combination of email bombing (a distraction technique), an incoming external or anonymous Teams call (social engineering channel), and the installation of common remote access tools (e.g., AnyDesk, TeamViewer) on the same host.
Detects the creation or modification of a file named '.Outlook' within the AppData or AppData\Roaming folders, followed by network communication to known malicious domains or IP addresses by a process other than outlook.exe within a 30-minute window. This behavior is indicative of potential malware staging or command-and-control communication.
Detects suspicious clipboard activity where the clipboard is either accessed or modified by known utility processes (e.g., AutoIt, RegSvcs) or contains patterns indicative of cryptocurrency address hijacking (e.g., Bitcoin or Ethereum addresses).
Detects processes repeatedly loading GDI/display libraries (gdi32.dll, gdi32full.dll, user32.dll) at a sustained cadence indicative of automated screen capturing. The rule excludes common collaboration and remote access tools known to perform these functions legitimately, flagging high-frequency, long-duration activity consistent with malicious screen scraping techniques.
Detects npm packages exhibiting suspicious metadata characteristics, such as disproportionately high download counts relative to package age, or combinations of trust signals that suggest potential supply chain poisoning or typosquatting, specifically targeting packages mimicking legitimate sorted-btree functionality.
Detects process injection and hook evasion attempts where a thread is created or modified with a start address that does not resolve to a known, legitimate memory module. This pattern is indicative of shellcode execution or reflective DLL injection where the malicious code resides in anonymous or unbacked memory regions.
Detects outbound network traffic from internal hosts to known ClickFix campaign command-and-control infrastructure, identified by specific malicious domains (grandenoid.org, mootornot.com) and associated IP addresses.
Detects anomalous authentication patterns in Microsoft 365 logs where a valid session is utilized across multiple distinct devices within a short timeframe (under 5 minutes) without a corresponding multi-factor authentication (MFA) challenge. This behavior is indicative of a session token replay attack, where an adversary uses a stolen session cookie to bypass MFA and access cloud services.
This rule detects potential Adversary-in-the-Middle (AiTM) phishing activity by correlating network requests to known malicious lure domains with help-desk or vishing-themed events (such as password resets or unsolicited IT support) for the same user within a one-hour window. This behavior is indicative of a help-desk impersonation campaign where attackers direct users to credential harvesting sites.
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