Detections

Explore public detection logic contributed by the community across SIEM and rule languages.

4,536 detections

This rule detects the creation of a suspicious file named 'spinstall0.aspx' or similar in a specific SharePoint template directory, which is indicative of a potential compromise related to CVE-2025-49704, CVE-2025-49706, or CVE-2025-53770. Additionally, it identifies network connections to known malicious IP addresses associated with these vulnerabilities.
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Frederico Canhoto@nullwhire
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Detections.ai Community
1 year ago
7560
CVE-2025-53770 Exploitation hunt
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Mr SG@vrsg173
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Detections.ai Community
1 year ago
1228
This detection rule identifies the creation of ISO (.iso) files on endpoints, specifically focusing on those created by common internet browsers and email clients. This activity is associated with the SLOW#TEMPEST campaign, which is known to distribute malware payloads via ISO files, often bundled with legitimate applications and malicious DLLs. The rule aims to detect the initial delivery vector of this threat.
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R W@shiftyroot
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Detections.ai Community
1 year ago
0127
This rule detects the creation of specific files named 'spinstall0' within the SharePoint Web Server Extensions template layouts directory. This activity could indicate an attempt to install or modify SharePoint components, potentially for malicious purposes or unauthorized changes.
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Jason Nelson@Jason
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Detections.ai Community
1 year ago
2143
Detects the creation of a randomly named executable (16-character alphanumeric) in common temporary directories (AppData\Local\Temp or C:\Windows\Temp). This behavior is associated with Warlock Dark Army ransomware.
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R W@shiftyroot
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Detections.ai Community
1 year ago
0020
Detects the creation of `spinstall0.aspx`, a known indicator of successful post-exploitation of the SharePoint vulnerability CVE-2025-53770.
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Aaron Mog@AaronMogS2S
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Detections.ai Community
1 year ago
4662
Detects the creation of "spinstall0.aspx", a file dropped after the successful exploitation of the SharePoint vulnerability CVE-2025-53770. This file is a known webshell.
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Yolanda Icepa@yicepa
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CyRAC-Hunters
1 year ago
1036
Scan for 18 malicious extensions
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Steven Lim@KQLWizard
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SlimKQL
1 year ago
11530865
This detection identifies the creation or modification of the "spinstall0.aspx" webshell file in Microsoft SharePoint directories. This file is a known indicator of compromise associated with the exploitation of CVE-2025-53770 (ToolShell vulnerability). Attackers exploit the vulnerability to drop webshells that provide persistent access to compromised SharePoint servers, allowing them to execute arbitrary commands, access sensitive data, and move laterally within the network.
Splunk Security@SplunkSecurity
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Splunk Security Content
1 year ago
0032
Detects the HazyBeacon backdoor, which leverages AWS Lambda URLs for C2 communication and uses custom tools for data exfiltration. The rule identifies known malicious file hashes, suspicious tool drops in C:\ProgramData, specific service creation commands for persistence, and network connections from the sideloaded host process (mscorsvw.exe) to AWS Lambda URLs.
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test User@testuser007
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Detections.ai Community
1 year ago
50120
This detection looks for activity associated with the Redirection ad-jacking campaign. It detects network connections to known malicious C2 domains and the installation of malicious browser extensions identified by their extension IDs.
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Rica Grande@cbrarkitect
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Detections.ai Community
1 year ago
119115
This detection identifies when a file is created or modified on a host within a short time window after a USB storage device was inserted. This behavior can be indicative of malware spreading via removable media, where a payload is automatically dropped onto the system.
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Anoozilla HunterX@AnoozillaHunterX
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Detections.ai Community
1 year ago
1188
Detects the creation of hidden configuration files or a LaunchDaemon plist file used by the Odyssey Stealer malware to establish persistence on a compromised macOS system.
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Aaron Mog@AaronMogS2S
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Detections.ai Community
1 year ago
0136
Detects execution of the Interlock RAT PHP variant and associated activity by looking for specific execution parameters, initial download commands, and known malicious file hashes, domains, and IP addresses.
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Chaitanya B B@mralien
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Detections.ai Community
1 year ago
3651
This rule detects the execution of common command-line utilities (wget, curl, nc, bash, python, perl, php, sh) within web server directories. This activity is highly suspicious as it could indicate an attacker attempting to download malicious files, execute web shells, or perform other post-exploitation activities on a compromised web server.
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Anoozilla HunterX@AnoozillaHunterX
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Detections.ai Community
1 year ago
1067
Detecting LOLDrivers using www.loldrivers.io and MDE telemetry.

This rule was created by Mehmet Ergene from BluRaven Academy and added to Detections.ai as it was missing from the repository.
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Rory Wagner@Sleuthifer
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Detections.ai Community
1 year ago
247180
Hunting query to monitor downloads through popular browsers
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Damien vd Linden@lindensec
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Detections.ai Community
1 year ago
3147
KQL Query
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Steven Lim@KQLWizard
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SlimKQL
1 year ago
701,741
SPL Query
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Anoozilla HunterX@AnoozillaHunterX
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Detections.ai Community
1 year ago
3263
Generic rule content from file: Masquerade - Suspicious ScreenConnect Install
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Marcus Mingo@meeengoh
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Tr&de
1 year ago
84112
Detects the creation of known offensive PowerShell scripts used for exploitation, reconnaissance, credential access, persistence, and other malicious activities. The rule identifies specific filenames associated with popular PowerShell offensive security frameworks and tools.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
1043
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