Ankit Mehta
@SecvynIndiaTrusted contributorCompletionist
7 followers9,573 downloads10,251 copies160 likes55,618 views
8,655 detections
Filters
Last updated
All Time
Detection languages
5,827
1,081
677
439
436
Categories
2,646
2,040
1,304
944
814
Platforms
5,999
954
874
706
593
Products / Services
2,800
1,372
1,362
725
707
MITRE Techniques
2,087
2,043
1,442
1,092
1,085
CVEs
17
16
15
11
11
IDS Classtypes
250
132
95
68
64
IDS Protocols
405
140
49
36
14
This rule detects the execution of PowerShell, wscript, or cscript with command-line arguments containing "Invoke-WebRequest" or "curl" in conjunction with specific keywords like "guloader", "etherhiding", or "clickfix". This combination suggests an attempt to download or execute malicious payloads associated with these campaigns or malware families.
This rule detects anomalous access to cloud services, specifically Salesforce, Drift, Salesloft, HubSpot, and Marketo, that may indicate OAuth token abuse. It identifies scenarios where a high volume of actions (8 or more) occur within a short timeframe (3 hours or less) from a single IP address but with multiple unique user agents (2 or more). The detection is further refined by looking for actions related to 'Add delegated permission grant' or 'Create service principal', which are indicative of an attacker attempting to establish persistence or escalate privileges after gaining access through a compromised OAuth token.
This rule detects potential data exfiltration attempts or sensitive information disclosure through Microsoft Copilot Enterprise Search. It specifically looks for 'URLClick' actions from 'Microsoft Copilot Enterprise Search' where the raw event data contains a 'q=' parameter (indicating a query) and also contains keywords like 'extract', 'embed', or 'img'. This combination suggests that a user might be attempting to extract or embed content, potentially sensitive, via a Copilot search query, which could lead to data leakage.
This rule detects the loading of specific DLLs associated with Remcos RAT (Optimax.dll, System Optimizer, SystemOptimizer) from temporary directories. This behavior is indicative of in-memory execution patterns often used by malware to evade detection.
Detects the execution of inline C# code compilation, often used by malware like Remcos RAT, when initiated by PowerShell or a process with 'Remcos' in its parent's filename. This rule specifically looks for command-line arguments indicative of C# compilation (csc.exe, csc.compiler, CodeCompile, CompileAssemblyFromSource) in conjunction with suspicious initiating processes.
This rule detects network connections from devices to a specific IP address (62.102.148.212) and a set of associated ports (37393, 45839, 38471, 12345, 4444, 5555). This IP address and these ports are known indicators of compromise for the Remcos Remote Access Trojan (RAT) Command and Control (C2) infrastructure. Detection of such connections indicates potential Remcos RAT activity within the environment.
This rule detects when the Remcos RAT loader attempts to access browser cache folders (Chrome, Firefox, Opera). This activity is indicative of credential dumping, where the malware tries to extract sensitive information like stored passwords or session tokens from web browsers.
Detects processes associated with Remcos RAT attempting to perform activity logging or idle time monitoring by looking for specific command-line arguments related to window and idle state functions, combined with process names or command lines containing 'Remcos'.
Detects the execution of known remote access tools (e.g., AnyDesk, TeamViewer, RemotePC, IDriveRemotePC) from non-standard parent processes. This helps identify unauthorized or potentially malicious use of remote control software that bypasses standard application deployment or management processes.
Detects potential ransomware activity characterized by the creation of files with a specific extension (.prinzeugen) followed by outbound network communication to known malicious IP addresses within a 24-hour window, which is indicative of double-extortion ransomware behavior.
Page 715 of 866