Ibrahim Saud
@tektrixIndiaCompletionist
2 followers18,458 downloads7,116 copies47 likes38,557 views
11,679 detections
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Detects the use of PowerShell to download content from an external URL and immediately execute it in memory using common download cradles (e.g., Net.WebClient, IWR) combined with execution commands like IEX (Invoke-Expression). This is a common pattern for fileless malware delivery and post-exploitation activity.
Detects the creation or abuse of Volume Shadow Copies specifically to access the NTDS.dit file or the SYSTEM registry hive, a common technique for offline Active Directory credential dumping.
Detects instances where common Microsoft Office applications (Word, Excel, PowerPoint, Outlook) spawn child processes that are typically associated with command interpretation, scripting, or LOLBins (Living Off the Land Binaries). This behavior is often indicative of malicious macro execution, exploit payloads, or obfuscated command execution originating from malicious documents.
Detects potential Pass-the-Hash (PtH) activity by monitoring Windows Security Event ID 4624 (Logon). The rule specifically targets logon type 9 (NewCredentials) combined with specific process/package names indicative of tools like Mimikatz, or anomalous NTLM network logons (logon type 3) that are not anonymous.
Detects the creation or abuse of Volume Shadow Copies specifically to access the NTDS.dit file or the SYSTEM registry hive, a common technique for offline Active Directory credential dumping.
Detects instances where common Microsoft Office applications (Word, Excel, PowerPoint, Outlook) spawn child processes that are typically associated with command interpretation, scripting, or LOLBins (Living Off the Land Binaries). This behavior is often indicative of malicious macro execution, exploit payloads, or obfuscated command execution originating from malicious documents.
Detects anomalous DNS traffic patterns indicative of command-and-control (C2) or data exfiltration over the DNS protocol. The rule identifies suspicious queries containing long, high-entropy subdomain labels that suggest payload encoding, as well as the use of TXT records for unauthorized data transmission.
Detects processes opening lsass.exe with high-risk access rights consistent with credential dumping (Sysmon EventID 10), including known dumping tool patterns such as procdump or rundll32 invoking the comsvcs.dll MiniDump export.
Detects outbound web or proxy connections to known consumer-grade cloud storage and file-sharing services. This activity is often indicative of data exfiltration, where an adversary uploads staged or archived sensitive data to third-party file hosting services (e.g., Mega, Dropbox, transfer.sh, pastebin) to bypass traditional enterprise exfiltration controls.
This rule detects Terraform CLI activity interacting with suspicious domains or modules, specifically targeting known repositories or namespaces (e.g., gocommunity.io, gogets.dev). It monitors for Terraform initialization or application patterns referencing these domains in process command lines, as well as the creation of Terraform provider files within these specific namespaces. This behavior is indicative of potential supply chain compromise involving malicious Terraform modules or dependencies.
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