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Ethan Andrews

@eandrews
Trusted contributorCompletionist
13 followers311 downloads7,465 copies113 likes78,074 views

1,181 detections

Detects the creation of specific persistence artifacts (a VBScript file and a startup shortcut) associated with the ModeloRAT payload delivered by recent ClickFix campaigns. Specifically, it looks for a VBScript file at '\WPy64-31401\python\script.vbs' or a shortcut file named 'MonitoringService.lnk' in a user's startup folder.
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Ethan Andrews@eandrews
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Federal Signal Detections
9 months ago
130176
Detects potential reverse shell activity originating from a Grandstream VoIP device. This is a high-fidelity indicator of compromise following the successful exploitation of CVE-2026-2329. This version uses DeviceNetworkEvents.
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Ethan Andrews@eandrews
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Federal Signal Detections
9 months ago
3150
Detects the execution of the deprecated Google 'software_reporter_tool.exe' from suspicious user-writable directories. This technique is used by the CRESCENTHARVEST malware campaign to perform DLL sideloading using a signed, but deprecated, binary to evade defenses.
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Ethan Andrews@eandrews
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Federal Signal Detections
9 months ago
4049
Detects suspicious web requests to the Tomcat Manager on Dell RecoverPoint appliances. This technique is used by UNC6201 to exploit CVE-2026-22769 and upload malicious WAR files.
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Ethan Andrews@eandrews
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Federal Signal Detections
9 months ago
6072
Detects modifications to the Text Input Processor (TIP) registry key with unusually large binary data, which can be indicative of malware hiding persistent code. This specific registry key is not commonly used for storing large amounts of data, making large writes suspicious.
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Ethan Andrews@eandrews
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Federal Signal Detections
9 months ago
7035
Detects modification of the IIS global configuration file (applicationHost.config) by a process outside of the standard inetsrv directory. This is the primary method BADIIS malware uses to register its malicious module and intercept web traffic.
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Ethan Andrews@eandrews
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Federal Signal Detections
9 months ago
170156
This detection identifies modifications to the 'convert_hosts.sh' script on Dell RecoverPoint appliances. This script is executed at boot time and was observed being modified by UNC6201 to establish persistence for the GRIMBOLT and BRICKSTORM backdoors.
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Ethan Andrews@eandrews
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Federal Signal Detections
9 months ago
6068
Detects the execution or loading of the Tiny C Compiler (TCC) runtime (libtcc.dll, tcc.exe) by non-development processes. This 'living-on-edge' compilation technique, observed in use by actors like Lotus Blossom, helps bypass static file-based detections by compiling malicious code directly on the host.
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Ethan Andrews@eandrews
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Federal Signal Detections
9 months ago
3030
Detects network connections or DNS queries to domains and IP addresses identified as payload delivery and C2 infrastructure for a JWrapper/SimpleHelp RAT campaign. Monitoring these indicators can help detect initial compromise or ongoing C2 communication.
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Ethan Andrews@eandrews
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Federal Signal Detections
9 months ago
6043
Detects the use of a specific PowerShell command pattern using the '[adsiSearcher]' type accelerator to enumerate and count computer objects in Active Directory. This technique was observed being used for discovery in campaigns following the exploitation of CVE-2026-1731 (BeyondTrust).
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Ethan Andrews@eandrews
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Federal Signal Detections
9 months ago
100130
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