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1985 Commits

Author SHA1 Message Date
Florian Roth
437a567e4f
Merge pull request #917 from Neo23x0/rule-devel 
New Empire Rules and Updates
 2020-07-13 16:37:59 +02:00
Florian Roth
557e8b0faf rule: improved Empire detection 2020-07-13 15:47:53 +02:00
Florian Roth
7e8aa7b12b
Merge pull request #915 from Neo23x0/rule-devel 
rule: regsvr32 flags anomaly
 2020-07-13 12:16:05 +02:00
Florian Roth
7a63fd56da rule: regsvr32 flags anomaly 2020-07-13 11:59:44 +02:00
Ryan Plas
25d978d9bd Update powershell_shellcode_b64.yml logsource to use the correct Sigma schema values 2020-07-11 22:17:06 -04:00
Florian Roth
3ab5eb97d8
Merge pull request #901 from brachera/master 
rule: Leviathan registry key
 2020-07-10 16:42:02 +02:00
Florian Roth
49aa0b4621
Merge pull request #909 from EccoTheFlintstone/fp2 
add WMI module load false positive
 2020-07-10 15:45:53 +02:00
Florian Roth
5de82628fa
Update sysmon_apt_leviathan.yml 2020-07-10 15:41:55 +02:00
Florian Roth
168952840b
Merge pull request #910 from Neo23x0/rule-devel 
Rule devel
 2020-07-10 14:17:22 +02:00
Florian Roth
268a28daed rule: Evilnum Golden Chicken rule OCX 2020-07-10 13:02:52 +02:00
ecco
e30eaa0202 be more specific about file location 2020-07-09 13:33:59 -04:00
ecco
94e3bd9e6b add WMI module load false positive 2020-07-09 13:32:21 -04:00
ecco
905f1b3823 add WMI and powershell false positives 2020-07-09 10:26:54 -04:00
Florian Roth
7949729fa4 rule: PowerShell encoded character syntax 2020-07-09 08:52:32 +02:00
Florian Roth
e3734aaa27
fix: missing upper tick 2020-07-08 15:53:04 +02:00
GelosSnake
efae210556
adding google chrome to FP list 
legitimate errors generated by Google Chrome are reported often.

Official google standpoint on this:
https://support.google.com/chrome/a/thread/15440066?hl=en
 2020-07-08 16:44:41 +03:00
Thomas Patzke
205b584e80 Merge branch 'pr-829' 2020-07-07 23:42:57 +02:00
Thomas Patzke
3e17cc1900
Merge pull request #894 from caliskanfurkan/master 
ditsnap, a credential access tool used in ransomware attacks
 2020-07-07 23:21:36 +02:00
Thomas Patzke
28013a15e1 Improved rule 2020-07-07 23:18:07 +02:00
Thomas Patzke
90f09f7b12 Merge branch 'devel' of https://github.com/diskurse/sigma into pr-829 2020-07-07 23:15:39 +02:00
Thomas Patzke
3c760fabc1
Merge pull request #745 from Rettila/master 
Added new rules
 2020-07-07 23:14:19 +02:00
Thomas Patzke
7eb499ad85 Added rule id 2020-07-07 22:54:55 +02:00
Thomas Patzke
360b5714a8 Splitted and improved new rule 2020-07-07 22:47:14 +02:00
Thomas Patzke
0ce5f2cc75 Merge branch 'patch-2' of https://github.com/4A616D6573/sigma into pr-483 2020-07-07 22:37:11 +02:00
Thomas Patzke
4762a59b89
Merge pull request #891 from rtkbkish/image-load-fixes 
Fix typo for rule in image_load category
 2020-07-07 22:31:32 +02:00
Thomas Patzke
2032a1e7fd
Merge pull request #898 from rtkbkish/fix-uac-registry 
Proposed fix for sysmon_uac_bypass_eventvwr
 2020-07-07 22:29:39 +02:00
Thomas Patzke
9e85731253
Merge pull request #899 from rtkbkish/refix-rules 
Re-fix sysmon rules that lost changes with category refactoring.
 2020-07-07 22:28:37 +02:00
Aidan Bracher
90983dcc4b add level field to rule 2020-07-07 14:28:18 +01:00
Aidan Bracher
f549a14d9a rule: Leviathan registry key 2020-07-07 13:27:57 +01:00
Florian Roth
99ac4f1f3d fix: FPs with RedMimicry rule 2020-07-07 10:11:58 +02:00
Brad Kish
c758ca0eb9 Re-fix sysmon rules that are lost changes with category refactoring. 
Several fixes for sysmon rules got lost when the rules were refactored to use
categories.

Re-add the fixes.

38afd8b5de

422b2bffd7

dfae2a6df6
 2020-07-06 10:55:42 -04:00
Brad Kish
7e06fd80fd Proposed fix for sysmon_uac_bypass_eventvwr 
Issue: https://github.com/Neo23x0/sigma/issues/888

The rules were not merged correctly with the transition to sysmon categories.

Split the rule into separate documents: one for the registry_event and one for
the process_creation
 2020-07-06 09:20:34 -04:00
Thomas Patzke
939156fa6d Introduced dns_query log source category 2020-07-05 23:29:51 +02:00
Thomas Patzke
0df21289a0 Merge branch 'dns-fixes' of https://github.com/rtkbkish/sigma into pr-893 2020-07-05 23:24:56 +02:00
Florian Roth
c51b4d0524
Merge pull request #890 from rtkbkish/file-event-fixes 
Fixes for rules in the sysmon file_event category
 2020-07-05 13:13:24 +02:00
Florian Roth
4a810dd136
Merge pull request #886 from Neo23x0/rule-devel 
Windows Curl Rules
 2020-07-05 13:12:41 +02:00
Furkan CALISKAN
8ef82e48eb ditsnap 2020-07-04 23:21:52 +03:00
Brad Kish
8b3b312c4e Proposed fix for https://github.com/Neo23x0/sigma/issues/889 
This change removes dns events from the network connection category. The
one change is that sysmon_regsvr32_network_activity.yml needs to test
the network connection category separately from the DNS event id.
 2020-07-03 16:28:19 -04:00
Brad Kish
7031d9e2b8 Fix typo for rule in image_load category 
image_load not image_loaded.
 2020-07-03 16:23:17 -04:00
Brad Kish
1e9d0e9653 Fixes for rules in the sysmon file_event category 
Fix a couple of typos

For sysmon_hack_dumpert:
Make sure the logsource is category file_event and not sysmon. Don't set
the category at the global level. Instead set in the individual document.
 2020-07-03 16:22:29 -04:00
Brad Kish
4b31633355 Fixes for rules in new sysmon registry_event category 
To be consistent with the behaviour of the other rules, the eventID should not
be specified as part of the rule. The category defines the eventID.
 2020-07-03 16:20:37 -04:00
Florian Roth
11517edbd7 rule: suspicious curl usage 2020-07-03 18:55:44 +02:00
Florian Roth
c4267a4614 rule: suspicious curl file upload 2020-07-03 18:20:44 +02:00
Florian Roth
80f15a1e50
Merge pull request #885 from Neo23x0/rule-devel 
fix: trailing whitespace
 2020-07-03 18:00:19 +02:00
Florian Roth
4d9e2e8c16 fix: trailing white space 2020-07-03 17:59:50 +02:00
Florian Roth
26d8810efb
Merge pull request #882 from Neo23x0/rule-devel 
Rule devel
 2020-07-03 15:33:55 +02:00
Florian Roth
4dc818aafd fix: rar flags rule caused too many FPs 2020-07-03 13:20:24 +02:00
Florian Roth
abf5f799d6 docs: more references 2020-07-03 13:19:44 +02:00
Florian Roth
5f04fcccf5 fix: broken links 2020-07-03 11:22:06 +02:00
Florian Roth
3111ab8396 refactor: new way to write that rule 2020-07-03 11:20:36 +02:00
Florian Roth
d12b8347dc fix: bug in cmstp rule 
https://github.com/Neo23x0/sigma/issues/876
 2020-07-03 11:19:11 +02:00
Florian Roth
0bbf40fb14 refactor: include xcopy 2020-07-03 11:03:45 +02:00
Florian Roth
3bea08edfc refactor: copy from/to system32 rule 2020-07-03 10:56:26 +02:00
Florian Roth
02dee36f4c
Merge pull request #880 from Neo23x0/rule-devel 
fix: typo in systemroot
 2020-07-03 10:25:31 +02:00
Florian Roth
34ea706e4f fix: typo in systemroot 2020-07-03 10:24:58 +02:00
Florian Roth
53620a0d2f
Merge pull request #879 from Neo23x0/rule-devel 
fix: missing copy command
 2020-07-03 10:18:21 +02:00
Florian Roth
0fa1c1525b fix: missing copy command 2020-07-03 10:17:34 +02:00
Florian Roth
248506be93
Merge pull request #878 from Neo23x0/rule-devel 
DesktopImgDownLdr Rules and extra rule
 2020-07-03 10:14:58 +02:00
Florian Roth
1f0b1e58a9 fix: bugs in rule and title 2020-07-03 09:54:10 +02:00
Florian Roth
01ed87186f Copy From System Root rule 2020-07-03 09:45:58 +02:00
Florian Roth
33fef8bcf5 DesktopImgDownLdr rules 2020-07-03 09:45:48 +02:00
Thomas Patzke
de0bb36c51 Merge branch 'master' of https://github.com/4A616D6573/sigma into pr-785 2020-07-02 23:04:59 +02:00
Florian Roth
4c4ed1a4a2 fix: duplicate IDs and rule titles 2020-07-01 16:37:27 +02:00
Florian Roth
9c0f9f398f refactor: sysmon rule cleanup > generlization 2020-07-01 10:58:39 +02:00
Florian Roth
4231fe2efc fix: remove duplicate rules in sysmon (generic rule cleanup) 2020-07-01 10:23:30 +02:00
Florian Roth
154181c6c8 fix: renamed files and lien break change 2020-07-01 09:48:48 +02:00
Florian Roth
d70b63b78c rule: RedMimicry rules (modified) 2020-07-01 09:17:31 +02:00
Florian Roth
fe71d21d97 style: removed new lines 2020-07-01 09:11:00 +02:00
Florian Roth
b7ac36e6ab Merge branch 'master' into rule-devel 2020-07-01 09:04:46 +02:00
Florian Roth
f2587791f2 rule: suspicious rar flags 2020-07-01 09:04:26 +02:00
Florian Roth
ba682c5de6
Merge pull request #863 from qwerty1q2w/feature 
add win_not_allowed_rdp_access.yml rule
 2020-06-30 10:03:11 +02:00
Florian Roth
77553e11e8
Update win_not_allowed_rdp_access.yml 2020-06-30 10:03:00 +02:00
Florian Roth
2e3669a5a4
Merge pull request #865 from j91321/defender-rules 
Windows Defender logsource and rules
 2020-06-30 10:01:17 +02:00
Florian Roth
eb3a6e86af
Merge pull request #867 from HarishHary/suspicious_powershell_parent_process 
New Rule: Suspicious powershell parent process
 2020-06-30 10:00:28 +02:00
Harish SEGAR
9c74018e12 Added new rule for pwsh_xor_cmd (sysmon) 2020-06-29 22:18:25 +02:00
Harish SEGAR
5e740fd7b2 Added new rule for pwsh_xor_cmd (sysmon) 2020-06-29 22:13:49 +02:00
Harish SEGAR
649e4eaa63 Added new rule for pwsh_xor_cmd 2020-06-29 22:09:58 +02:00
Florian Roth
5a11ef90d0
rule reorganized 2020-06-29 21:24:47 +02:00
Harish SEGAR
1a088425f9 Fix rules. 2020-06-29 20:42:35 +02:00
Florian Roth
bb214f5832 rule: Explorer Root Flag Process Tree Break 2020-06-29 12:07:15 +02:00
j91321
24029d998a FIX: lint error for title 2020-06-28 11:05:19 +02:00
j91321
ae842a65cb Windows Defender rules and logsource 2020-06-28 10:55:32 +02:00
Thomas Patzke
d1f37bdbd4
Merge pull request #828 from stevengoossensB/master 
Split rules based on Sysmon event ID
 2020-06-28 00:00:32 +02:00
Pushkarev Dmitry
502ec4b417 add win_not_allowed_rdp_access.yml rule 2020-06-26 22:15:53 +00:00
Florian Roth
3decee07ba fix: bugfix and cosmetics 2020-06-24 18:10:58 +02:00
Florian Roth
f3fedef8f5 Changed category names and remove sysmon log source 2020-06-24 17:41:21 +02:00
Florian Roth
4224a6517d
Merge pull request #859 from Neo23x0/rule-devel 
fix: duplicate IDs
 2020-06-24 17:23:13 +02:00
Florian Roth
c3ffa0b9d3 fix: duplicate IDs 2020-06-24 17:04:04 +02:00
Brad Kish
d385cbfa69 Fix quoting for AD Object WriteDAC Access 
The AccessMask field needs to be quoted so that it is compared correctly.
 2020-06-22 15:31:03 -04:00
Furkan ÇALIŞKAN
b091e3b1c4
Update for new method 
Update for method mentioned in https://ired.team/offensive-security/code-execution/code-execution-through-control-panel-add-ins
 2020-06-22 01:06:34 +03:00
Florian Roth
e1225784f7 fix: fixed indentation 2020-06-19 09:54:08 +02:00
Florian Roth
62632db818 refactor: added variant to IE rule 2020-06-19 09:53:35 +02:00
Florian Roth
5cb6f5da9d fix: title adjusted 2020-06-19 09:39:11 +02:00
Florian Roth
b8a5cd4787 Disabled IE Security Features 2020-06-19 09:37:10 +02:00
Florian Roth
da060bfb90 Ke3chang rule 2020-06-19 09:36:54 +02:00
Florian Roth
b675c4c706 Merge branch 'master' into rule-devel 2020-06-19 09:24:26 +02:00
Florian Roth
4b0c80885f
Merge pull request #810 from EccoTheFlintstone/fp 
add WMI module load false positives
 2020-06-18 12:50:40 +02:00
Florian Roth
32ecb81630
Merge pull request #845 from ikiril01/att&ck_subtechniques_v2 
ATT&CK subtechniques v2
 2020-06-18 09:10:09 +02:00
Ivan Kirillov
b343df2225 Further subtechnique updates 2020-06-17 11:31:40 -06:00
ecco
99bfa14ae0 add 1 more FP 2020-06-17 12:49:27 -04:00
Florian Roth
0022705373 fix: filter not functional 
since `UsrLogon.cmd` does appear only in `C:\Windows\system32\cmd.exe /c UsrLogon.cmd` command line
 2020-06-17 16:09:44 +02:00
Ivan Kirillov
5c0bb0e94f Fixed indentation 2020-06-16 15:01:13 -06:00
Ivan Kirillov
0fbfcc6ba9 Initial round of subtechnique updates 2020-06-16 14:46:08 -06:00
Florian Roth
d24ec665fd
Merge pull request #838 from rtkbkish/fix-identifier 
Identifiers shared between global document and rule gets overwritten
 2020-06-15 20:20:23 +02:00
Florian Roth
87053502a3
Merge pull request #839 from rtkbkish/fix-double-backslash 
Fix match for double-backslash
 2020-06-15 20:19:56 +02:00
Florian Roth
869162a5da
Merge pull request #840 from rtkbkish/remove-wrong-sysmon-id 
Rule lists extra Sysmon ID (11). Should just match registry events (1…
 2020-06-15 20:19:27 +02:00
Florian Roth
3482e048fb
Merge pull request #841 from rtkbkish/fix-rule-match 
Rule needs endwith, not exact match.
 2020-06-15 20:19:12 +02:00
Florian Roth
46bd56a708
Merge pull request #837 from rtkbkish/fix-win-invoke-obfuscation 
Fix logsource field name from service->category
 2020-06-15 20:18:53 +02:00
Brad Kish
dfae2a6df6 Rule needs endwith, not exact match. 
Fix ImageLoaded filter to match with endswith, rather than exact match.
 2020-06-15 13:54:02 -04:00
Brad Kish
a9c6fa904f Rule lists extra Sysmon ID (11). Should just match registry events (12-14) 
Remove extraneous event ID 11. It will never match.
 2020-06-15 13:52:12 -04:00
Brad Kish
f196046b3d Fix match for double-backslash 
To match a double-backslash you actually need three backslashes, since two
backslashes gets reduced to one.
 2020-06-15 13:39:50 -04:00
Brad Kish
422b2bffd7 Fix rules with incorrect escaping of wildcars 
A backslash before a wildcard needs to be escaped with another backslash.
 2020-06-15 13:38:18 -04:00
Brad Kish
8d58c8f5c8 Fix logsource field name from service->category 
The rule win_invoke_obfuscation_obfuscated_iex_commandline has the
wrong field name for the "process_creation" tag. Rename from "service"
to "category"
 2020-06-15 13:18:05 -04:00
Brad Kish
f5aa871e5d Identifiers shared between global document and rule gets overwritten 
The global document defines a "selection" identifier which is also defined the
individual rules. The rule identifier is getting overwritten by the global identifier.
Fix by giving unique names to the global identifier.
 2020-06-15 13:14:31 -04:00
Iveco
40f0fd989d - moved to "process_creation" folder instead of "sysmon" 
- renamed .yml file
 2020-06-11 19:21:17 +02:00
Iveco
34d7ea2974 removed one field 2020-06-11 16:23:15 +02:00
Iveco
2081baafe5 updated to process_creation 2020-06-11 15:58:05 +02:00
Iveco
f56e2599b1 Cmd.exe Path Traversal Detection 2020-06-11 15:48:48 +02:00
Florian Roth
a7136481f1
Update win_pcap_drivers.yml 2020-06-11 11:14:43 +02:00
Florian Roth
97c45f9d46
Merge pull request #812 from tliffick/master 
added new rules for malware
 2020-06-10 17:37:19 +02:00
Cian Heasley
9835c6d67d
add win_pcap_drivers.yml 2020-06-10 15:53:22 +01:00
Florian Roth
96309d247b
fix: cosmetic fault 2020-06-10 16:41:03 +02:00
Florian Roth
6e4aa01baa
Cosmetics 2020-06-10 16:36:17 +02:00
Florian Roth
13c7d40a22
Cosmetics 2020-06-10 16:35:41 +02:00
Florian Roth
f553fb2e33
Cosmetics 2020-06-10 16:35:14 +02:00
Florian Roth
48e4e31713
Merge pull request #826 from NVISO-BE/sysmon_susp_fax_dll 
Fax Service DLL search order hijacking detection
 2020-06-10 16:33:12 +02:00
Florian Roth
1a9da23611
Merge pull request #825 from NVISO-BE/sysmon_office_persistence 
Office persistence by addin detection
 2020-06-10 16:32:50 +02:00
Steven Goossens
e5f36dd146 Added rules files split into folders 2020-06-10 16:32:30 +02:00
Remco Hofman
8adaa2d672 Fixed bad indentation 2020-06-10 15:02:41 +02:00
Remco Hofman
83a6e25bcb Fax Service DLL search order hijacking 2020-06-10 15:01:07 +02:00
Remco Hofman
cb8e478ac1 Sigma rule to detect Office persistence via addin. 2020-06-10 14:52:13 +02:00
Florian Roth
5c835cf1f2
Merge pull request #813 from ozirus/patch-1 
Create sysmon_apt_muddywater_dnstunnel.yml
 2020-06-09 18:44:45 +02:00
Florian Roth
7a334a8d8a
fix: missed line 2020-06-09 17:30:54 +02:00
Florian Roth
04913a4b95
Aligned indentation 2020-06-09 17:20:25 +02:00
Florian Roth
9b8f8b7e09
Merge pull request #822 from NVISO-BE/win_mal_flowcloud 
TA410 FlowCloud malware detection
 2020-06-09 17:18:39 +02:00
Remco Hofman
a9bf22750a Fixed bad indentation 2020-06-09 16:30:17 +02:00
Remco Hofman
4ce3ea735e TA410 FlowCloud malware detection 2020-06-09 16:21:46 +02:00
Remco Hofman
d14d391761 Octopus Scanner malware rule 2020-06-09 16:12:05 +02:00
Florian Roth
6e349030d9 rule: suspicious camera and mic access 2020-06-08 10:18:44 +02:00
Florian Roth
0c2f2fe6df
Merge pull request #816 from Neo23x0/rule-devel 
merged Cyb3rWarD0g's rules
 2020-06-06 16:27:59 +02:00
Florian Roth
d3e261862d merged Cyb3rWarD0g's rules 2020-06-06 15:42:22 +02:00
Florian Roth
72deaa98f5
Merge pull request #815 from Neo23x0/rule-devel 
Rule devel
 2020-06-06 14:19:37 +02:00
Florian Roth
3697186281 fix: fixed title 2020-06-06 14:04:40 +02:00
Florian Roth
246a95557b fix: description over multiple lines 2020-06-06 13:56:48 +02:00
Florian Roth
d54209dcc5 rule: ETW disabled 2020-06-06 13:56:19 +02:00
Florian Roth
2e77e65285 rule: Covenant launchers 2020-06-05 11:03:28 +02:00
Furkan ÇALIŞKAN
082696ee84
Added UUID 2020-06-04 18:38:42 +03:00
Furkan ÇALIŞKAN
e958a6a939
Date added 2020-06-04 18:34:44 +03:00
Furkan ÇALIŞKAN
5e373153eb
Title fix 2020-06-04 18:28:37 +03:00
Furkan ÇALIŞKAN
0744107fbb
Deleted EventID part 2020-06-04 18:19:08 +03:00
Furkan ÇALIŞKAN
1c677aa172
Fix title as in guideline 
Fix title error as in guideline and other cosmetic changes
 2020-06-04 18:13:32 +03:00
Furkan ÇALIŞKAN
bafd6bde5f
Convert to process_creation 
Convert to process_creation
 2020-06-04 14:45:10 +03:00
Furkan ÇALIŞKAN
09afae1e66
Create sysmon_apt_muddywater_dnstunnel.yml 
Detecting DNS tunnel activity from MuddyWater as in https://www.virustotal.com/gui/file/5ad401c3a568bd87dd13f8a9ddc4e450ece61cd9ce4d1b23f68ce0b1f3c190b7/
 2020-06-04 14:27:19 +03:00
Trent Liffick
6c8c0cd85d
Removed incorrect technique 2020-06-03 17:51:57 -04:00
Trent Liffick
3c89f46899
removed unwanted file 2020-06-03 17:43:12 -04:00
Trent Liffick
2af501c9f5
added rule for zLoader & Office 
detects changes to Office macro settings & ZLoader malware
 2020-06-03 17:40:05 -04:00
Trent Liffick
a2ca199e7d
added rules for Lazaurs and hhsgov 2020-06-03 17:38:03 -04:00
William Bruneau
84dd8c39c4 Move null values out from list in rules 2020-06-03 13:57:22 +02:00
Sven Scharmentke
4ed512011a All Rules use 'TargetFilename' instead of 'TargetFileName'. 
This commit fixes the incorrect spelling.
 2020-06-03 09:00:59 +02:00
ecco
b1c11cc345 add WMI module load false positive 2020-06-01 03:30:27 -04:00
Florian Roth
e20b58c421
Merge pull request #806 from SanWieb/sysmon_creation_system_file 
Fixed wrong field & Improve rule
 2020-05-29 17:32:27 +02:00
Sander Wiebing
a00f7f19a1
Add tagg Endswith 
Prevent the trigger of {}.exe.log
 2020-05-29 16:25:54 +02:00
Sander Wiebing
38afd8b5de
Fixed wrong field 2020-05-28 21:52:17 +02:00
Florian Roth
7f2fa05ed3
Merge pull request #802 from Neo23x0/rule-devel 
ComRAT and KazuarRAT
 2020-05-28 11:16:44 +02:00
Florian Roth
39b41b5582 rule: moved DebugView rule to process creation category 2020-05-28 10:13:38 +02:00
Florian Roth
76dcc1a16f rule: renamed debugview 2020-05-28 09:22:25 +02:00
Florian Roth
ec313b6c8a
Merge pull request #801 from SanWieb/sysmon_creation_system_file 
Rule: sysmon_creation_system_file
 2020-05-27 08:49:20 +02:00
Sander Wiebing
d44fc43c54
Add extension 2020-05-26 19:10:11 +02:00
Sander Wiebing
f6ec724d51
Rule: sysmon_creation_system_file 2020-05-26 18:53:54 +02:00
Florian Roth
5bb6770f53
Merge pull request #800 from SanWieb/win_system_exe_anomaly 
Extended Windows processes: win_system_exe_anomaly
 2020-05-26 14:28:47 +02:00
Florian Roth
4ca81b896d rule: Turla ComRAT report 2020-05-26 14:19:22 +02:00
Sander Wiebing
3681b8cb56
Extended Windows processes 2020-05-26 13:56:51 +02:00
Florian Roth
c1f4787566
Merge pull request #797 from NVISO-BE/sysmon_cve-2020-1048 
Changes to sysmon_cve-2020-1048
 2020-05-26 13:21:04 +02:00
Florian Roth
ce1f46346f
Merge pull request #751 from zaphodef/fix/powershell_ntfs_ads_access 
Add 'Add-Content' to powershell_ntfs_ads_access
 2020-05-26 13:20:40 +02:00
Florian Roth
e131f3476e
Merge pull request #796 from EccoTheFlintstone/fp 
add more false positives
 2020-05-26 13:20:23 +02:00
Sander Wiebing
f9f814f3b3
Shortened title 2020-05-26 13:06:27 +02:00
Sander Wiebing
a241792e10
Reduce FP of legitime processes 
A lot of Windows apps does not have any file characteristics. Some examples:
- Gamebar: C:\\Program Files\\WindowsApps\\Microsoft.XboxGamingOverlay_3.38.25003.0_x64__8wekyb3d8bbwe\\GameBarFT.exe
- YourPhone: C:\\Program Files\\WindowsApps\\Microsoft.YourPhone_1.20022.82.0_x64__8wekyb3d8bbwe\\YourPhoneServer/YourPhoneServer.exe

All C:\Windows\System32\OpenSSH (scp, sftp, ssh etc) does not have a description and company.

Python 2.7, 3.3 and 3.7 does not have any file characteristics.

So I don't think it is possible to whitelist all options, maybe it is worthwhile to check the \Downloads\ folder otherwise it would be better to just delete the rule. All other suspicious folders are covered by /rules/windows/process_creation/win_susp_exec_folder.yml
 2020-05-26 12:58:15 +02:00
Remco Hofman
48c5f2ed09 Update to sysmon_cve-2020-1048 
Added .com executables to detection
Second TargetObject should have been Details
 2020-05-26 11:20:21 +02:00
ecco
7037e77569 add more FP 2020-05-25 04:50:22 -04:00
Florian Roth
a962bd1bc1
Merge pull request #747 from zaphodef/fix/win_susp_backup_delete_source 
Fix 'source' value for win_susp_backup_delete
 2020-05-25 10:48:36 +02:00
Florian Roth
0afe0623af
Merge pull request #757 from tliffick/master 
added rule for Blue Mockingbird (cryptominer)
 2020-05-25 10:47:23 +02:00
Sander Wiebing
6fcf3f9ebf
Update win_netsh_fw_add.yml 2020-05-25 10:13:26 +02:00
Sander Wiebing
28652e4648
Add Windows Server 2008 and Windows Vista support 
It did not support the command `netsh advfirewall firewall add`
 2020-05-25 10:02:13 +02:00
Sander Wiebing
2678cd1d3e
Create win_netsh_fw_add_susp_image.yml 
More critical version of the rule windows/process_creation/win_netsh_fw_add.yml with the suspicious image location check. 

Combined the following rules for the suspicious locations:
https://github.com/Neo23x0/sigma//blob/master/rules/windows/sysmon/sysmon_susp_download_run_key.yml
https://github.com/Neo23x0/sigma/blob/master/rules/windows/sysmon/sysmon_susp_run_key_img_folder.yml
https://github.com/Neo23x0/sigma/blob/master/rules/windows/process_creation/win_susp_run_locations.yml
 2020-05-25 09:50:47 +02:00
Sander Wiebing
b8ee736f44
Remove AppData folder as suspicious folder 
A lot of software is using the AppData folder for startup keys. Some examples:
- Microsoft Teams (\AppData\Local\Microsoft\Teams)
- Resilio (\AppData\Roaming\Resilio Sync\)
- Discord ( (\AppData\Local\Discord\)
- Spotify ( (\AppData\Roaming\Spotify\)

Too many to whitelist them all
 2020-05-24 15:16:07 +02:00
Florian Roth
6fbfa9dfdd
Merge pull request #793 from Neo23x0/rule-devel 
Esentutl rule and StrongPity Loader UA
 2020-05-23 23:47:12 +02:00
ecco
f970d28f10 add more false positives 2020-05-23 15:06:15 -04:00
Florian Roth
3028a27055 fix: buggy rule 2020-05-23 18:32:02 +02:00
Florian Roth
df715386b6 rule: suspicious esentutl use 2020-05-23 18:27:36 +02:00
ecco
67faf4bd41 fix FP + remove powershell rule redundant with sysmon_in_memory_powershell.yml 2020-05-23 10:56:23 -04:00
Florian Roth
9cd9a301c2
Merge pull request #791 from SanWieb/master 
added rule for Netsh RDP port opening
 2020-05-23 16:50:31 +02:00
ecco
10ca3006f5 move rule where needed 2020-05-23 10:07:55 -04:00
ecco
d9bc09c38c fix test 2020-05-23 10:02:58 -04:00
ecco
78a7852a43 renamed dbghelp rule with new ID and comment and removed a false positive 2020-05-23 09:16:40 -04:00
Sander Wiebing
d310805ed9
rule: Netsh RDP port opening 2020-05-23 14:19:52 +02:00
ecco
75ba5f989c add 1 more FP to wmi load 2020-05-23 07:44:45 -04:00
ecco
9a7f462d79 move renamed bnaries rule to process creation (they made a lot of false positives in sysmon as there was no event id specified in the rule) 2020-05-23 07:17:56 -04:00
ecco
cfde0625f5 fix false positive matching on every powershell process not run by SYSTEM account 2020-05-23 07:05:09 -04:00
Florian Roth
12e1aeaf9f
Merge pull request #788 from Neo23x0/rule-devel 
refactor: split up rule for CVE-2020-1048 into 2 rules
 2020-05-23 09:54:43 +02:00
Florian Roth
34006d0794 refactor: simplified and extended expression in CVE-2020-1048 rule 2020-05-23 09:16:19 +02:00