Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
6,535 detections
Filters
Last updated
All Time
Detection languages
3,970
998
596
428
233
Contributors
1,363
1,250
1,066
954
384
Categories
2,931
2,196
2,017
1,857
1,411
Platforms
39,934
7,265
6,535
3,865
3,645
Products / Services
4,107
2,418
1,585
270
254
MITRE Techniques
1,450
1,310
1,022
934
696
CVEs
46
46
33
18
12
IDS Classtypes
1,753
458
404
325
220
IDS Protocols
2,202
773
381
300
93
The DNS Z flag is bit within the DNS protocol header that is, per the IETF design, meant to be used reserved (unused).
Although recently it has been used in DNSSec, the value being set to anything other than 0 should be rare.
Otherwise if it is set to non 0 and DNSSec is being used, then excluding the legitimate domains is low effort and high reward.
Determine if multiple of these files were accessed in a short period of time to further enhance the possibility of seeing if this was a one off or the possibility of larger sensitive file gathering.
This Sigma query is designed to accompany the Corelight Threat Hunting Guide, which can be found here: https://www3.corelight.com/corelights-introductory-guide-to-threat-hunting-with-zeek-bro-logs'
Although recently it has been used in DNSSec, the value being set to anything other than 0 should be rare.
Otherwise if it is set to non 0 and DNSSec is being used, then excluding the legitimate domains is low effort and high reward.
Determine if multiple of these files were accessed in a short period of time to further enhance the possibility of seeing if this was a one off or the possibility of larger sensitive file gathering.
This Sigma query is designed to accompany the Corelight Threat Hunting Guide, which can be found here: https://www3.corelight.com/corelights-introductory-guide-to-threat-hunting-with-zeek-bro-logs'
Detect AD credential dumping using impacket secretdump HKTL. Based on the SIGMA rules/windows/builtin/win_impacket_secretdump.yml
This detection excludes known namped pipes accessible remotely and notify on newly observed ones, may help to detect lateral movement and remote exec using named pipes
Detects User Agent strings that end with an equal sign, which can be a sign of base64 encoding.
Page 312 of 312