Duo Tech
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2,481 detections
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Detects outbound HTTP requests to 'pastebin.com' retrieving raw content, a technique commonly used by Ousaban malware to fetch command-and-control (C2) configurations from legitimate paste sites.
Detects execution of specific shell commands (shell, kill, upload, stop) often associated with remote access trojans or backdoors. This rule monitors process creation events where these specific command verbs are present in the command line of either the process itself or its initiator, commonly seen in scenarios where a backdoor receives commands via system execution primitives like execvp() or posix_spawnp().
Detects macOS binaries that employ dynamic API resolution by using 'dlsym' and 'dlopen' to resolve sensitive functions like 'SecTrustSetAnchorCertificatesOnly' or 'IOPMAssertionCreateWithName' at runtime. This technique is often used to avoid static analysis by bypassing import table monitoring and string extraction.
Detects the execution or network communication involving python-build-standalone, a tool often used by developers to deploy portable Python environments. In an environment, the unauthorized use of this tool may indicate an adversary attempting to deploy their own Python interpreter to execute malicious scripts, effectively bypassing environment-specific restrictions or configurations.
Detects HTTP GET requests to a specific self-hosted GitLab domain 'gitlab.bzctoons.net' that attempt to download a file named 'protected.zip', which is associated with the retrieval of StealC information-stealing malware by the Amadey loader.
Detects unauthorized processes attempting to access sensitive local browser files (credential stores, cookies, and local state databases) associated with Chrome, Edge, Brave, Chromium, and Firefox. Such access is a primary indicator of infostealer malware attempting to harvest saved credentials and session cookies from a victim's machine.
Detects instances where wscript.exe deletes PowerShell files (.ps1) from the C:\Temp directory. This pattern is commonly associated with JScript droppers and malicious scripts performing post-execution cleanup to remove forensic artifacts after a timeout period.
Detects persistence attempts by the Amadey infostealer. The rule monitors for unauthorized creation of .job files directly in the Windows Tasks directory or the execution of schtasks.exe from suspicious locations such as TEMP or APPDATA folders.
Detects unauthorized access to sensitive browser credential files (Login Data, Cookies, logins.json) by processes other than standard browsers or known security products. This activity is a common indicator of credential harvesting by infostealer malware families aiming to compromise saved passwords and session cookies.
Detects the execution of PowerShell with the 'Expand-Archive' cmdlet originating from a suspicious or non-standard parent process. This pattern is commonly used by malware loaders, such as Amadey, to unpack second-stage payloads like StealC from downloaded ZIP archives hidden in temporary application folders.
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