Commit Graph

2773 Commits

Author SHA1 Message Date
Florian Roth dd4a1ac393 fix: prone to FPs - use is unclear
https://regex101.com/r/tss5TZ/1
2021-03-18 16:44:49 +01:00
Florian Roth d30e87d543 fix: lsass access - FPs with AV / EDR software 2021-03-18 09:04:03 +01:00
Florian Roth 92510e2507 extended Exchange post-exploitation rule 2021-03-17 18:01:45 +01:00
Florian Roth bfc99996b5 fix: Bug in rule condition 2021-03-16 16:35:21 +01:00
Florian Roth 32adf0c3ce fix: prone to FPs 2021-03-16 15:52:35 +01:00
Florian Roth 70f9480ec5 fix: wrong field name 2021-03-15 08:14:43 +01:00
Florian Roth a0b034aa2b fix: better exclusion 2021-03-13 09:09:43 +01:00
Florian Roth 145c3bc2ca refactor: more hafnium indicators 2021-03-13 09:07:58 +01:00
Florian Roth 69ee1cece2 fix: FPs 2021-03-13 09:07:44 +01:00
Florian Roth 48da4e1314 Update win_apt_hafnium.yml 2021-03-11 13:55:31 +01:00
Florian Roth 9084fc4fa7 Update on HAFNIUM rule
https://discuss.elastic.co/t/detection-and-response-for-hafnium-activity/266289/3
2021-03-11 13:38:07 +01:00
Florian Roth 78004cc29c fix: condition contains - values without 0x 2021-03-10 18:56:05 +01:00
Florian Roth 29dec7dd8b fix: FPs with LSASS Access from Non System Account 2021-03-10 18:51:27 +01:00
Florian Roth ec490b40ec fix: 1 of them condition 2021-03-09 09:15:12 +01:00
Florian Roth 563335ec5a rule: suspicious service binary location 2021-03-09 09:01:36 +01:00
Florian Roth 2ded9543f3 rule: HAFNIUM post-exploitation activity 2021-03-09 09:01:24 +01:00
Florian Roth 2b5f9f994f Merge pull request #1376 from SigmaHQ/rule-devel
UNC2452 rules - GoldMax, GoldFinder, Sibot
2021-03-05 18:17:20 +01:00
Florian Roth a61fbe6bd8 fix: duplicate UUID 2021-03-05 12:09:43 +01:00
Florian Roth 3a0fc4835a Merge pull request #1363 from markus-nclose/master
Fix CobaltStrike typo
2021-03-05 12:06:31 +01:00
Florian Roth b864768de8 fix: wrong conditions 2021-03-05 11:55:49 +01:00
Florian Roth c3b84f2d5b UNC2452 rules - GoldMax, Sibot, GoldFinder
https://www.microsoft.com/security/blog/2021/03/04/goldmax-goldfinder-sibot-analyzing-nobelium-malware/
2021-03-05 11:54:35 +01:00
Florian Roth bdc35aa3ec Update win_webshell_spawn.yml 2021-03-05 11:34:17 +01:00
Florian Roth 62b65a3578 Merge pull request #1375 from SigmaHQ/rule-devel
fix: description
2021-03-04 17:35:53 +01:00
Florian Roth bea2f226c6 fix: description 2021-03-04 17:35:25 +01:00
Florian Roth 9e921115bc Merge pull request #1373 from SigmaHQ/rule-devel
HAFNIUM rule
2021-03-03 10:34:08 +01:00
Florian Roth d8ded5ebdc refactor: changed symbols after feedback from Volexity 2021-03-03 10:15:45 +01:00
Florian Roth e17986ebd3 rule: HAFNIUM Exchange exploitation 2021-03-03 09:58:43 +01:00
Florian Roth 73a3a1e5cd Merge pull request #1360 from d4rk-d4nph3/master
Added sigma rule for vSphere RCE CVE-2021-21972
2021-03-03 09:32:05 +01:00
Florian Roth 8c95f90075 Update web_vsphere_cve_2021_21972_unauth_rce_exploit.yml 2021-03-03 09:08:24 +01:00
Bhabesh Rai 56eed19fba Added rules for successful exploitation fo CVE-2021-26857/8 in Exchannge 2021-03-03 12:46:50 +05:45
Florian Roth 6d30f87c0c refactor: procdump use 2021-03-02 23:36:25 +01:00
Florian Roth 5c1dc30a13 Merge pull request #1369 from SigmaHQ/rule-devel
fix: FPs with rule and avast sandbox
2021-03-02 15:30:30 +01:00
Florian Roth c873d878b9 fix: FPs with rule and avast sandbox 2021-03-02 10:08:30 +01:00
Florian Roth b65dbee01f Merge pull request #1366 from Neo23x0/rule-devel
rule: SilentProcessExit monitors
2021-02-26 18:09:44 +01:00
Florian Roth ba7c7409a3 fix: typo in modified 2021-02-26 17:48:50 +01:00
Florian Roth 79acbbef9f rule: SilentProcessExit monitors 2021-02-26 17:35:42 +01:00
Florian Roth 40710fe89a Merge pull request #1357 from Neo23x0/rule-devel
Rule FP fixes
2021-02-26 11:05:00 +01:00
Florian Roth 274b7b0f2e fix: search for keywords within message 2021-02-26 09:42:12 +01:00
Florian Roth 9d937705c0 fix: null values in separate filter expression
> null value in lists cause problems in some backends
2021-02-25 15:19:26 +01:00
markus-nclose 67d3d5e220 Fixed CobaltStrike typo 2021-02-25 07:25:20 +02:00
Bhabesh Rai e1dff01cea Added sigma rule for vSphere RCE CVE-2021-21972 2021-02-24 23:48:08 +05:45
Florian Roth a8912da1a0 rule: finger.exe execution 2021-02-24 17:47:56 +01:00
jaegeral e1f43f17c2 fixed various spelling errors all over rules and source code 2021-02-24 14:43:13 +00:00
Florian Roth f8b6b9d68e fix: FPs with Suspect Svchost Activity 2021-02-24 13:55:40 +01:00
Florian Roth 0489d4bfa4 fix: rule 2021-02-24 13:44:13 +01:00
Florian Roth 9eb55016bf fix: FPs with WMI Spawning Windows PowerShell 2021-02-24 13:32:30 +01:00
Florian Roth b032bc3328 fix: FPs with Wmiprvse Spawning Process 2021-02-24 13:27:18 +01:00
Florian Roth 028ce2a548 fix: Sysmon NTLM downgrade attack - too many fps 2021-02-24 13:22:25 +01:00
Joshua Roys 025a17e44b fix: case in level
Otherwise es-rule ends up with a null risk_score and invalid severity.
2021-02-22 21:34:06 -05:00
Florian Roth 96803a5a27 Merge pull request #1355 from Neo23x0/rule-devel
Rule devel
2021-02-22 17:46:21 +01:00