AppX Package Installation Attempts Via AppInstaller.EXE
Detects DNS queries made by "AppInstaller.EXE". (...)
Generic test dns windows Sysmon - mediumfrack113 2021-11-24 2023-11-09 7cff77e1-9663-46a3-8260-17f2e1aa9d0a
2 Arbitrary File Download Via GfxDownloadWrapper.EXE
Detects execution of GfxDownloadWrapper.exe with a URL as an argument to download file.
Generic test process_creation windows Sysmon · WinEventLog Security - mediumVictor Sergeev, oscd.community 2020-10-09 2023-10-18 eee00933-a761-4cd0-be70-c42fe91731e7
1 Axios NPM Compromise File Creation Indicators - Linux
Detects file creation events linked to the Axios NPM supply chain compromise. (...)
Emerging experimental file_event linux Sysmon - highSwachchhanda Shrawan Poudel (Nextron Systems) 2026-04-01 — b7cb840c-11f6-47f7-b3ef-5524739c9077
5 Axios NPM Compromise File Creation Indicators - MacOS
Detects file creation events linked to the Axios NPM supply chain compromise on macOS devices. (...)
Emerging experimental file_event macos - - highSwachchhanda Shrawan Poudel (Nextron Systems) 2026-04-01 — 2db0458c-05c9-4069-a26f-77becd9c8c13
5 Axios NPM Compromise Indicators - Linux
Detects the Linux-specific execution chain of the plain-crypto-js malicious npm dependency by Axios NPM package, including payload download via curl and detached execution using nohup and python3. (...)
Emerging experimental process_creation linux Sysmon - highSwachchhanda Shrawan Poudel (Nextron Systems) 2026-04-01 — 0a23a62d-c5b3-468b-a072-25064a9a8c87
5 Axios NPM Compromise Indicators - macOS
Detects the macOS-specific execution chain of the plain-crypto-js malicious npm dependency in Axios NPM Package, including AppleScript execution via osascript, payload download, permission modification, execution, and cleanup.
Emerging experimental process_creation macos - - highSwachchhanda Shrawan Poudel (Nextron Systems) 2026-04-01 — a09ee860-31b3-4586-8a68-0ebd74ce0e5f
5 Axios NPM Compromise Indicators - Windows
Detects the specific Windows execution chain and process tree associated with the Axios NPM supply chain compromise. (...)
Emerging experimental process_creation windows Sysmon · WinEventLog Security - highSwachchhanda Shrawan Poudel (Nextron Systems) 2026-04-01 — f6c27ecc-d890-4452-80e6-2e274a10e097
5 BITS Client BitsProxy DLL Loaded By Uncommon Process
Detects an uncommon process loading the "BitsProxy.dll". (...)
Hunting experimental image_load windows Sysmon - lowUnicornOfHunt 2025-06-04 — e700ff14-1bff-4d1d-9438-738dff5f0466
1 Splunk
BITS Job Persistence
The following analytic detects the use of `bitsadmin.exe` to schedule a BITS job for persistence on an endpoint. (...)
Generic stable process_creation windows Sysmon · WinEventLog Security · CrowdStrike - mediumMichael Haag, Splunk 2021-03-30 2026-10-02 e97a5ffe-90bf-11eb-928a-acde48001122
5 BITS Transfer Job Download From Direct IP
Detects a BITS transfer job downloading file(s) from a direct IP address.
Generic test - windows BITS - highNasreddine Bencherchali (Nextron Systems) 2023-01-11 2023-03-27 90f138c1-f578-4ac3-8c49-eecfd847c8b7
4 BITS Transfer Job Download From File Sharing Domains
Detects BITS transfer job downloading files from a file sharing domain.
Generic test - windows BITS - highFlorian Roth (Nextron Systems) 2022-06-28 2026-03-29 d635249d-86b5-4dad-a8c7-d7272b788586
4 BITS Transfer Job Download To Potential Suspicious Folder
Detects new BITS transfer job where the LocalName/Saved file is stored in a potentially suspicious l (...)
Generic test - windows BITS - highFlorian Roth (Nextron Systems) 2022-06-28 2023-03-27 f8a56cb7-a363-44ed-a82f-5926bb44cd05
1 BITS Transfer Job Downloading File Potential Suspicious Extension
Detects new BITS transfer job saving local files with potential suspicious extensions
Generic test - windows BITS - mediumfrack113 2022-03-01 2023-03-27 b85e5894-9b19-4d86-8c87-a2f3b81f0521
1 BITS Transfer Job With Uncommon Or Suspicious Remote TLD
Detects a suspicious download using the BITS client from a FQDN that is unusual. (...)
Generic test - windows BITS - mediumFlorian Roth (Nextron Systems) 2022-06-10 2025-02-28 6d44fb93-e7d2-475c-9d3d-54c9c1e33427
2 Splunk
BITSAdmin Download File
The following analytic detects the use of `bitsadmin.exe` with the `transfer` parameter to download a remote object. (...)
Generic stable process_creation windows Sysmon · WinEventLog Security · CrowdStrike - mediumMichael Haag, Sittikorn S 2021-03-30 2026-10-02 80630ff4-8e4c-11eb-aab5-acde48001122
5 Bitsadmin to Uncommon IP Server Address
Detects Bitsadmin connections to IP addresses instead of FQDN names
Generic test proxy - - - highFlorian Roth (Nextron Systems) 2022-06-10 2022-08-24 8ccd35a2-1c7c-468b-b568-ac6cdf80eec3
1 Bitsadmin to Uncommon TLD
Detects Bitsadmin connections to domains with uncommon TLDs
Generic test proxy - - - highFlorian Roth (Nextron Systems), Tim Shelton 2019-03-07 2026-09-30 9eb68894-7476-4cd6-8752-23b51f5883a7
2 Browser Execution In Headless Mode
Detects execution of Chromium based browser in headless mode
Generic test process_creation windows Sysmon · WinEventLog Security - lowNasreddine Bencherchali (Nextron Systems) 2023-09-12 — ef9dcfed-690c-4c5d-a9d1-482cd422225c
2 Splunk
Cisco ASA - Device File Copy to Remote Location
This analytic detects file copy operations to remote locations on Cisco ASA devices via CLI or ASDM. (...)
Anomaly stable firewall - Cisco Secure Firewall · Cisco - mediumNasreddine Bencherchali, Splunk 2025-11-21 2026-05-13 8a9e5f2b-6d4c-4e7f-9b3a-1c8d7f5e2a9b
2 Splunk
Cisco Isovalent - Curl Execution With Insecure Flags
The following analytic detects the execution of curl commands with insecure flags within the Cisco Isovalent environment. (...)
Anomaly stable process_creation - Cisco - mediumBhavin Patel, Splunk 2026-01-05 2026-10-02 c16c4899-d3f7-461b-92c2-cc0ef5758855
3 Splunk
Cisco NVM - Curl Execution With Insecure Flags
This analytic detects the use of `curl.exe` with insecure flags such as `-k`, `--insecure`, `--proxy (...)
Anomaly stable network_connection - Cisco NVM · Cisco - mediumNasreddine Bencherchali, Splunk 2025-07-01 2026-09-22 cc695238-3117-4e60-aa83-4beac2a42c69
1 Splunk
Cisco NVM - Suspicious Download From File Sharing Website
This analytic detects suspicious downloads from common file sharing and content delivery platforms u (...)
Anomaly stable network_connection - Cisco NVM · Cisco - mediumNasreddine Bencherchali, Splunk 2025-07-01 2026-09-22 94ebc001-35e7-4ae8-9b0e-52766b2f99c7
5 Splunk
Cisco NVM - Suspicious File Download via Headless Browser
This analytic identifies the use of Chromium-based browsers (like Microsoft Edge) running in headless mode with the `--dump-dom` argument. (...)
Generic stable network_connection - Cisco NVM · Cisco - mediumNasreddine Bencherchali, Splunk 2025-07-01 2026-09-22 cd0e816f-f67d-4dbe-a153-480b546e867e
4 Splunk
Cisco NVM - Webserver Download From File Sharing Website
This analytic detects unexpected outbound network connections initiated by known webserver processes such as `httpd.exe`, `nginx.exe`, or `tomcat.exe` to common file sharing or public content hosting services like GitHub, Discord CDN, Transfer.sh, or Pastebin. (...)
Generic stable network_connection - Cisco NVM · Cisco - mediumNasreddine Bencherchali, Splunk 2025-07-01 2026-09-22 1984f997-3b49-4d4b-a7e9-dc5dbf88370e
3 Splunk
Cisco Secure Firewall - Communication Over Suspicious Ports
The following analytic detects potential reverse shell activity by identifying connections involving ports commonly associated with remote access tools, shell listeners, or tunneling utilities. (...)
Anomaly stable firewall - Cisco Secure Firewall · Cisco - mediumNasreddine Bencherchali, Splunk 2025-04-03 2026-05-13 d85c05c8-42c0-4e4a-87e7-4e1bb3e844e3
1 Splunk
Cisco Secure Firewall - Connection to File Sharing Domain
The following analytic detects outbound connections to commonly abused file sharing and pastebin-style hosting domains. (...)
Anomaly stable firewall - Cisco Secure Firewall · Cisco - mediumNasreddine Bencherchali, Splunk 2025-04-03 2026-05-13 f7e5e792-d907-46c1-a58e-4ff974dc462a
1 Splunk
Cisco Secure Firewall - File Download Over Uncommon Port
The following analytic detects file transfers flagged as malware that occurred over non-standard ports (other than 80 and 443). (...)
Anomaly stable firewall - Cisco Secure Firewall · Cisco - mediumNasreddine Bencherchali, Splunk 2025-04-09 2026-09-22 f26445a8-a6a2-4855-bec0-0c39e52e5b8f
1 Splunk
Cisco Secure Firewall - High EVE Threat Confidence
The following analytic detects connections with a high Encrypted Visibility Engine (EVE) threat confidence score, indicating potentially malicious behavior within encrypted traffic. (...)
Anomaly stable firewall - Cisco Secure Firewall · Cisco - mediumNasreddine Bencherchali, Splunk 2025-04-03 2026-05-13 8c15183e-2e70-4db4-86c3-88f8d9129b66
1 Splunk
Cisco Secure Firewall - Malware File Downloaded
The following analytic detects file downloads that were classified as malware by Cisco Secure Firewall Threat Defense. (...)
Anomaly stable firewall - Cisco Secure Firewall · Cisco - mediumNasreddine Bencherchali, Splunk 2025-04-09 2026-09-22 3cc93f52-5aa6-4b7f-83b9-3430b1436813
1 Splunk
Cisco Secure Firewall - Potential Data Exfiltration
The following analytic detects potentially suspicious large volumes of data sent by the connection initiator on flows from internal to external networks. (...)
Anomaly stable firewall - Cisco Secure Firewall · Cisco - mediumNasreddine Bencherchali, Splunk 2025-04-03 2026-05-13 3d8536b6-52b4-4c3e-b695-3f2e90bb22be
1 Splunk
Cisco Secure Firewall - Repeated Malware Downloads
The following analytic detects repeated malware file downloads initiated by the same internal host (src) within a short time window. (...)
Anomaly stable firewall - Cisco Secure Firewall · Cisco - mediumNasreddine Bencherchali, Splunk 2025-04-09 2026-09-22 aeff2bb5-3483-48d4-9be8-c8976194be1e
1 Splunk
Cisco Secure Firewall - Snort Rule Triggered Across Multiple Hosts
This analytic identifies Snort intrusion signatures that have been triggered by ten or more distinct internal IP addresses within a one-hour window. (...)
Anomaly stable firewall - Cisco Secure Firewall · Cisco - mediumNasreddine Bencherchali, Splunk 2025-04-16 2026-05-13 a4c76d0a-56b6-44be-814b-939746c4d406
1 Splunk
Cisco Secure Firewall - Wget or Curl Download
The following analytic detects outbound connections initiated by command-line tools such as curl or wget. (...)
Anomaly stable firewall - Cisco Secure Firewall · Cisco - mediumNasreddine Bencherchali, Splunk 2025-04-03 2026-05-13 173a1cb9-1814-4128-a9dc-f29dade89957
1 Cisco Stage Data
Various protocols maybe used to put data on the device for exfil or infil
Generic test authentication - Cisco AAA · Cisco - lowAustin Clark 2019-08-12 2023-01-04 5e51acb2-bcbe-435b-99c6-0e3cd5e2aa59
- Command Line Execution with Suspicious URL and AppData Strings
Detects a suspicious command line execution that includes an URL and AppData string in the command l (...)
Generic test process_creation windows Sysmon · WinEventLog Security - mediumFlorian Roth (Nextron Systems), Jonhnathan Ribeiro, oscd.community 2019-01-16 2021-11-27 1ac8666b-046f-4201-8aba-1951aaec03a3
2 Curl Download And Execute Combination
Adversaries can use curl to download payloads remotely and execute them. (...)
Generic test process_creation windows Sysmon · WinEventLog Security - highSreeman, Nasreddine Bencherchali (Nextron Systems) 2020-01-13 2024-03-05 21dd6d38-2b18-4453-9404-a0fe4a0cc288
1 Splunk
Curl Execution with Percent Encoded URL
The following analytic detects the execution of the curl utility where the command line includes percent-encoded characters and explicit file output options (such as -o or --output). (...)
Anomaly stable process_creation windows · linux CrowdStrike · Sysmon · WinEventLog Security - mediumNasreddine Bencherchali, Splunk 2026-03-03 2026-05-13 9a8d5516-4c5e-11ef-9d42-acde48001122
4 Curl Usage on Linux
Detects a curl process start on linux, which indicates a file download from a remote location or a s (...)
Generic test process_creation linux Sysmon - lowNasreddine Bencherchali (Nextron Systems) 2022-09-15 — ea34fb97-e2c4-4afb-810f-785e4459b194
1 Curl.EXE Execution
Detects a curl process start on Windows, which could indicates a file download from a remote locatio (...)
Hunting test process_creation windows Sysmon · WinEventLog Security - lowFlorian Roth (Nextron Systems) 2022-07-05 2023-02-21 bbeaed61-1990-4773-bf57-b81dbad7db2d
1 DarkGate - Autoit3.EXE File Creation By Uncommon Process
Detects the usage of curl.exe, KeyScramblerLogon, or other non-standard/suspicious processes used to create Autoit3.exe. (...)
Emerging test file_event windows Sysmon - mediumMicah Babinski 2023-10-15 — 1a433e1d-03d2-47a6-8063-ece992cf4e73
3 Data Exfiltration with Wget
Detects attempts to post the file with the usage of wget utility. (...)
Generic test process_creation linux Linux Auditd - mediumPawel Mazur 2021-11-18 2022-12-25 cb39d16b-b3b6-4a7a-8222-1cf24b686ffc
2 Splunk
Detect Certify Command Line Arguments
The following analytic detects the use of Certify or Certipy tools to enumerate Active Directory Certificate Services (AD CS) environments. (...)
Generic stable process_creation windows Sysmon · WinEventLog Security · CrowdStrike - mediumSteven Dick 2023-07-28 2026-05-13 e6d2dc61-a8b9-4b03-906c-da0ca75d71b8
3 Splunk
DNS Query Length With High Standard Deviation
The following analytic identifies DNS queries with unusually large lengths by computing the standard deviation of query lengths and filtering those exceeding two times the standard deviation. (...)
Anomaly stable dns windows Sysmon - mediumBhavin Patel, Splunk 2019-10-16 2026-05-13 1a67f15a-f4ff-4170-84e9-08cf6f75d6f5
- Download File To Potentially Suspicious Directory Via Wget
Detects the use of wget to download content to a suspicious directory
Generic test process_creation linux Sysmon - mediumJoseliyo Sanchez, @Joseliyo_Jstnk 2023-06-02 — cf610c15-ed71-46e1-bdf8-2bd1a99de6c4
4 Splunk
Download Files Using Telegram
The following analytic detects suspicious file downloads by the Telegram application on a Windows system. (...)
Generic stable create_stream_hash windows Sysmon - mediumTeoderick Contreras, Splunk 2021-05-07 2026-05-13 58194e28-ae5e-11eb-8912-acde48001122
1 Download from Suspicious Dyndns Hosts
Detects download of certain file types from hosts with dynamic DNS names (selected list)
Generic test proxy - - - mediumFlorian Roth (Nextron Systems) 2017-11-08 2023-05-18 195c1119-ef07-4909-bb12-e66f5e07bf3c
1 Executable from Webdav
Detects executable access via webdav6. (...)
Generic test - - HTTP · Zeek - mediumSOC Prime, Adam Swan 2020-05-01 2021-11-27 aac2fd97-bcba-491b-ad66-a6edf89c71bf
2 File Download And Execution Via IEExec.EXE
Detects execution of the IEExec utility to download and execute files
Generic test process_creation windows Sysmon · WinEventLog Security - highNasreddine Bencherchali (Nextron Systems) 2022-05-16 2023-11-09 9801abb8-e297-4dbf-9fbd-57dde0e830ad
1 File Download From Browser Process Via Inline URL
Detects execution of a browser process with a URL argument pointing to a file with a potentially interesting extension. (...)
Generic test process_creation windows Sysmon · WinEventLog Security - mediumFlorian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems) 2022-01-11 2025-10-27 94771a71-ba41-4b6e-a757-b531372eaab6
2 File Download From IP Based URL Via CertOC.EXE
Detects when a user downloads a file from an IP based URL using CertOC.exe
Generic test process_creation windows Sysmon · WinEventLog Security - highNasreddine Bencherchali (Nextron Systems) 2023-10-18 — b86f6dea-0b2f-41f5-bdcc-a057bd19cd6a
1