ADS Zone.Identifier Deleted
Detects the deletion of the "Zone.Identifier" ADS. (...)
Hunting test file_delete windows Sysmon - lowfrack113 2023-09-04 — 7eac0a16-5832-4e81-865f-0268a6d19e4b
1 ADS Zone.Identifier Deleted By Uncommon Application
Detects the deletion of the "Zone.Identifier" ADS by an uncommon process. (...)
Generic test file_delete windows Sysmon - mediumNasreddine Bencherchali (Nextron Systems) 2023-09-04 2025-07-04 3109530e-ab47-4cc6-a953-cac5ebcc93ae
2 Backup Catalog Deleted
Detects backup catalog deletions
Generic test - windows WinEventLog Application - mediumFlorian Roth (Nextron Systems), Tom U. @c_APT_ure (collection) 2017-05-12 2022-12-25 9703792d-fd9a-456d-a672-ff92efe4806a
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 Cisco File Deletion
See what files are being deleted from flash file systems
Generic test authentication - Cisco AAA · Cisco - mediumAustin Clark 2019-08-12 2023-01-04 71d65515-c436-43c0-841b-236b1f32c21e
- 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
Clear Unallocated Sector Using Cipher App
The following analytic detects the execution of `cipher.exe` with the `/w` flag to clear unallocated sectors on a disk. (...)
Generic stable process_creation windows Sysmon · WinEventLog Security · CrowdStrike - mediumTeoderick Contreras, Splunk 2021-06-10 2026-05-13 cd80a6ac-c9d9-11eb-8839-acde48001122
2 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 Directory Removal Via Rmdir
Detects execution of the builtin "rmdir" command in order to delete directories. (...)
Generic test process_creation windows Sysmon · WinEventLog Security - lowfrack113 2022-01-15 2023-03-07 41ca393d-538c-408a-ac27-cf1e038be80c
2 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
- File Deleted Via Sysinternals SDelete
Detects the deletion of files by the Sysinternals SDelete utility. (...)
Generic test file_delete windows Sysmon - mediumRoberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research) 2020-05-02 2023-02-15 6ddab845-b1b8-49c2-bbf7-1a11967f64bc
2 File Deletion
Detects file deletion using "rm", "shred" or "unlink" commands which are used often by adversaries t (...)
Generic stable process_creation linux Sysmon - informationalÖmer Günal, oscd.community 2020-10-07 2022-09-15 30aed7b6-d2c1-4eaf-9382-b6bc43e50c57
1 File Deletion Via Del
Detects execution of the builtin "del"/"erase" commands in order to delete files. (...)
Generic test process_creation windows Sysmon · WinEventLog Security - lowfrack113 2022-01-15 2024-03-05 379fa130-190e-4c3f-b7bc-6c8e834485f3
2 Greedy File Deletion Using Del
Detects execution of the "del" builtin command to remove files using greedy/wildcard expression. (...)
Generic test process_creation windows Sysmon · WinEventLog Security - mediumfrack113 , X__Junior (Nextron Systems) 2021-12-02 2023-09-11 204b17ae-4007-471b-917b-b917b315c5db
2 Splunk
Gsuite Outbound Email With Attachment To External Domain
The following analytic detects outbound emails with attachments sent from an internal email domain to an external domain. (...)
Hunting stable account_management - Google Cloud - mediumTeoderick Contreras, Stanislav Miskovic, Splunk 2021-08-17 2026-05-13 dc4dc3a8-ff54-11eb-8bf7-acde48001122
1 High DNS Bytes Out
High DNS queries bytes amount from host per short period of time
Unsupported unsupported dns - - - mediumDaniil Yugoslavskiy, oscd.community 2019-10-24 2023-03-24 0f6c1bf5-70a5-4963-aef9-aab1eefb50bd
- High DNS Bytes Out - Firewall
High DNS queries bytes amount from host per short period of time
Unsupported unsupported firewall - - - mediumDaniil Yugoslavskiy, oscd.community 2019-10-24 2023-03-24 3b6e327d-8649-4102-993f-d25786481589
- High DNS Requests Rate
High DNS requests amount from host per short period of time
Unsupported unsupported dns - - - mediumDaniil Yugoslavskiy, oscd.community 2019-10-24 2023-03-24 b4163085-4001-46a3-a79a-55d8bbbc7a3a
- High DNS Requests Rate - Firewall
High DNS requests amount from host per short period of time
Unsupported unsupported firewall - - - mediumDaniil Yugoslavskiy, oscd.community 2019-10-24 2023-03-24 51186749-7415-46be-90e5-6914865c825a
- High NULL Records Requests Rate
Extremely high rate of NULL record type DNS requests from host per short period of time. (...)
Unsupported unsupported dns - - - mediumDaniil Yugoslavskiy, oscd.community 2019-10-24 2023-03-24 44ae5117-9c44-40cf-9c7c-7edad385ca70
- High TXT Records Requests Rate
Extremely high rate of TXT record type DNS requests from host per short period of time. (...)
Unsupported unsupported dns - - - mediumDaniil Yugoslavskiy, oscd.community 2019-10-24 2023-03-24 f0a8cedc-1d22-4453-9c44-8d9f4ebd5d35
- Splunk
Linux Account Manipulation Of SSH Config and Keys
The following analytic detects the deletion of SSH keys on a Linux machine. (...)
Anomaly stable file_event linux Sysmon - mediumTeoderick Contreras, Splunk 2022-04-12 2026-05-13 73a56508-1cf5-4df7-b8d9-5737fbdc27d2
1 Splunk
Linux Deletion Of Cron Jobs
The following analytic detects the deletion of cron jobs on a Linux machine. (...)
Anomaly stable file_event linux Sysmon - mediumTeoderick Contreras, Splunk 2022-04-12 2026-05-13 3b132a71-9335-4f33-9932-00bb4f6ac7e8
1 Splunk
Linux Deletion Of Init Daemon Script
The following analytic detects the deletion of init daemon scripts on a Linux machine. (...)
Generic stable file_event linux Sysmon - mediumTeoderick Contreras, Splunk 2022-04-12 2026-05-13 729aab57-d26f-4156-b97f-ab8dda8f44b1
1 Splunk
Linux Deletion Of Services
The following analytic detects the deletion of services on a Linux machine. (...)
Generic stable file_event linux Sysmon - mediumTeoderick Contreras, Splunk 2022-04-12 2026-05-13 b509bbd3-0331-4aaa-8e4a-d2affe100af6
3 Splunk
Linux Deletion of SSL Certificate
The following analytic detects the deletion of SSL certificates on a Linux machine. (...)
Anomaly stable file_event linux Sysmon - mediumTeoderick Contreras, Splunk 2022-04-12 2026-05-13 839ab790-a60a-4f81-bfb3-02567063f615
1 Splunk
Linux High Frequency Of File Deletion In Boot Folder
The following analytic detects a high frequency of file deletions in the /boot/ folder on Linux systems. (...)
Generic stable file_event linux Sysmon - mediumTeoderick Contreras, Splunk 2022-04-12 2026-05-13 e27fbc5d-0445-4c4a-bc39-87f060d5c602
2 Splunk
Linux High Frequency Of File Deletion In Etc Folder
The following analytic detects a high frequency of file deletions in the /etc/ folder on Linux systems. (...)
Anomaly stable file_event linux Sysmon - mediumTeoderick Contreras, Splunk 2022-04-12 2026-05-13 9d867448-2aff-4d07-876c-89409a752ff8
1 Splunk
Linux Indicator Removal Service File Deletion
The following analytic detects the deletion of Linux service unit configuration files by suspicious processes. (...)
Anomaly stable process_creation linux Sysmon - mediumTeoderick Contreras, Splunk 2023-02-08 2026-05-13 6c077f81-2a83-4537-afbc-0e62e3215d55
2 Splunk
Linux Shell Pseudo Device Reverse Shell
The following analytic detects the use of shell's /dev/tcp or /dev/udp pseudo-device feature to establish outbound network connections. (...)
Anomaly stable process_creation linux Sysmon - mediumRaven Tait, Splunk 2026-07-08 2026-07-08 f324bc06-8436-4606-8882-0a8fb480b719
1 Splunk
Multiple Archive Files Http Post Traffic
The following analytic detects the high-frequency exfiltration of archive files via HTTP POST requests. (...)
Generic stable network_connection - Splunk Stream HTTP - mediumTeoderick Contreras, Splunk 2021-04-22 2026-05-13 4477f3ea-a28f-11eb-b762-acde48001122
3 New DLL Added to AppInit_DLLs Registry Key
DLLs that are specified in the AppInit_DLLs value in the Registry key HKLM\Software\Microsoft\Window (...)
Generic test registry_event windows Sysmon · WinEventLog Security - mediumIlyas Ochkov, oscd.community, Tim Shelton 2019-10-25 2022-12-25 4f84b697-c9ed-4420-8ab5-e09af5b2345d
1 Splunk
Plain HTTP POST Exfiltrated Data
The following analytic detects potential data exfiltration using plain HTTP POST requests. (...)
Generic stable network_connection - Splunk Stream HTTP - mediumTeoderick Contreras, Splunk 2021-04-22 2026-09-08 e2b36208-a364-11eb-8909-acde48001122
1 Possible DNS Tunneling
Normally, DNS logs contain a limited amount of different dns queries for a single domain. (...)
Unsupported unsupported dns - - - highPatrick Bareiss 2019-04-07 2023-03-24 1ec4b281-aa65-46a2-bdae-5fd830ed914e
2 Potential Data Exfiltration Over SMTP Via Send-MailMessage Cmdlet
Detects the execution of a PowerShell script with a call to the "Send-MailMessage" cmdlet along with the "-Attachments" flag. (...)
Hunting test ps_script windows PowerShell - mediumfrack113 2022-09-26 2024-11-01 9a7afa56-4762-43eb-807d-c3dc9ffe211b
3 Potential Secure Deletion with SDelete
Detects files that have extensions commonly seen while SDelete is used to wipe files.
Generic test - windows WinEventLog Security - mediumThomas Patzke 2017-06-14 2024-12-13 39a80702-d7ca-4a83-b776-525b1f86a36d
3 Potentially Suspicious Ping/Copy Command Combination
Detects uncommon and potentially suspicious one-liner command containing both "ping" and "copy" at the same time, which is usually used by malware.
Generic test process_creation windows Sysmon · WinEventLog Security - mediumX__Junior (Nextron Systems) 2023-07-18 2024-03-06 ded2b07a-d12f-4284-9b76-653e37b6c8b0
1 PowerShell ICMP Exfiltration
Detects Exfiltration Over Alternative Protocol - ICMP. (...)
Generic test ps_script windows PowerShell - mediumBartlomiej Czyz @bczyz1, oscd.community 2020-10-10 2022-12-25 4c4af3cd-2115-479c-8193-6b8bfce9001c
1 Prefetch File Deleted
Detects the deletion of a prefetch file which may indicate an attempt to destroy forensic evidence
Generic test file_delete windows Sysmon - highCedric MAURUGEON 2021-09-29 2024-01-25 0a1f9d29-6465-4776-b091-7f43b26e4c89
2 Splunk
Protocol or Port Mismatch
The following analytic identifies network traffic where the higher layer protocol does not match the expected port, such as non-HTTP traffic on TCP port 80. (...)
Anomaly stable network_connection - Cisco Secure Firewall · Cisco - mediumRico Valdez, Splunk 2020-04-29 2026-05-13 54dc1265-2f74-4b6d-b30d-49eb506a31b3
- Python WebServer Execution - Linux
Detects the execution of Python web servers via command line interface (CLI). (...)
Generic experimental process_creation linux Sysmon - mediumMohamed LAKRI 2025-10-17 — 3f0f5957-04f8-4792-ad89-192b0303bde6
3 Splunk
Recursive Delete of Directory In Batch CMD
The following analytic detects the execution of a batch command designed to recursively delete files or directories, a technique often used by ransomware like Reddot to delete files in the recycle bin and prevent recovery. (...)
Generic stable process_creation windows Sysmon · WinEventLog Security · CrowdStrike - mediumTeoderick Contreras, Splunk 2021-06-23 2026-05-13 ba570b3a-d356-11eb-8358-acde48001122
1 Splunk
Sdelete Application Execution
The following analytic detects the execution of the sdelete.exe application, a Sysinternals tool often used by adversaries to securely delete files and remove forensic evidence from a targeted host. (...)
Generic stable process_creation windows Sysmon · WinEventLog Security · CrowdStrike - mediumTeoderick Contreras, Splunk 2021-10-06 2026-05-13 31702fc0-2682-11ec-85c3-acde48001122
1 Suspicious DNS Query with B64 Encoded String
Detects suspicious DNS queries using base64 encoding
Generic test dns - - - mediumFlorian Roth (Nextron Systems) 2018-05-10 2022-10-09 4153a907-2451-4e4f-a578-c52bb6881432
1 Suspicious Outbound SMTP Connections
Adversaries may steal data by exfiltrating it over an un-encrypted network protocol other than that of the existing command and control channel. (...)
Generic test network_connection windows Sysmon - mediumfrack113 2022-01-07 2022-09-21 9976fa64-2804-423c-8a5b-646ade840773
2 Suspicious Ping/Del Command Combination
Detects a method often used by ransomware. (...)
Generic test process_creation windows Sysmon · WinEventLog Security - highIlya Krestinichev 2022-11-03 2024-03-05 54786ddc-5b8a-11ed-9b6a-0242ac120002
4 Suspicious WebDav Client Execution Via Rundll32.EXE
Detects "svchost.exe" spawning "rundll32.exe" with command arguments like C:\windows\system32\davclnt.dll,DavSetCookie. (...)
Generic test process_creation windows Sysmon · WinEventLog Security highNasreddine Bencherchali (Nextron Systems), Florian Roth (Nextron Systems) 2023-03-16 2023-09-18 982e9f2d-1a85-4d5b-aea4-31f5e97c6555
5 TeamViewer Log File Deleted
Detects the deletion of the TeamViewer log files which may indicate an attempt to destroy forensic e (...)
Generic test file_delete windows Sysmon - lowfrack113 2022-01-16 2023-02-15 b1decb61-ed83-4339-8e95-53ea51901720
1 Use Of Remove-Item to Delete File - ScriptBlock
PowerShell Remove-Item with -Path to delete a file or a folder with "-Recurse"
Hunting test ps_script windows PowerShell - lowfrack113 2022-01-15 2022-03-17 b8af5f36-1361-4ebe-9e76-e36128d947bf
2 WebDav Client Execution Via Rundll32.EXE
Detects "svchost.exe" spawning "rundll32.exe" with command arguments like "C:\windows\system32\davclnt.dll,DavSetCookie". (...)
Generic test process_creation windows Sysmon · WinEventLog Security - mediumRoberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research) 2020-05-02 2023-09-18 2dbd9d3d-9e27-42a8-b8df-f13825c6c3d5
2