t1558 | LoFP

t1558

Title	Tags
administration activity	t1558 t1558.003 windows sigma
administrators or power users may use powerview for troubleshooting	t1558 T1558.004 endpoint splunk
administrators or power users may use search for accounts with kerberos pre authentication disabled for legitimate purposes.	t1558 T1558.004 endpoint splunk
although unlikely, administrators may need to set this flag for legitimate purposes.	t1558 T1558.004 endpoint splunk
although unlikely, legitimate applications may use the same command line parameters as rubeus. filter as needed.	t1550 t1550.003 t1558 t1558.003 T1558.004 endpoint splunk
an single endpoint requesting a large number of kerberos service tickets is not common behavior. possible false positive scenarios include but are not limited to vulnerability scanners, administration systems and missconfigured systems.	t1078 t1135 t1558 t1558.003 endpoint splunk
based on microsoft documentation, legacy systems or applications will use rc4-hmac as the default encryption for kerberos service ticket requests. specifically, systems before windows server 2008 and windows vista. newer systems will use aes128 or aes256.	t1558 T1558.001 endpoint splunk
false positive may include administrators using powerview for troubleshooting and management.	t1558 t1558.003 endpoint splunk
false positives are possible, filtering may be required to restrict to workstations vs domain controllers. filter as needed.	t1558 endpoint splunk
false positives may trigger the detections certain scenarios like directory service delays or out of date lookups. filter as needed.	t1558 endpoint splunk
http traffic on a non standard port. verify that the destination ip address is not related to a domain controller.	t1558 windows elastic
it is possible false positives will be present based on third party applications. filtering may be needed.	t1558 endpoint splunk
it is possible third party applications may add these spns to computer accounts, filtering may be needed.	t1558 endpoint splunk
it is possible third party applications may have a computer account that adds computer accounts, filtering may be required.	t1558 endpoint splunk
legacy applications.	t1558 t1558.003 windows sigma
normal enterprise spn requests activity	t1558 t1558.003 zeek sigma
older systems that support kerberos rc4 by default like netapp may generate false positives. filter as needed	t1558 t1558.003 endpoint splunk
service accounts used on legacy systems (e.g. netapp)	t1558 t1558.003 windows sigma
unlikely	t1003 t1003.001 t1003.002 t1003.004 t1003.005 t1003.006 t1005 t1007 t1008 t1012 t1014 t1016 t1018 t1021 t1021.002 t1021.003 t1021.006 t1027 t1027.005 t1033 t1036 t1036.003 t1036.005 t1036.007 t1041 t1046 t1047 t1048 t1048.001 t1053 t1053.003 t1053.005 t1055 t1055.001 t1056 t1057 t1059 t1059.001 t1059.002 t1059.003 t1068 t1070 t1071 t1071.001 t1071.004 t1078 t1082 t1083 t1087 t1090 t1090.001 t1090.003 t1105 t1106 t1112 t1115 t1123 t1127 t1132 t1132.001 t1133 t1134 t1134.001 t1134.002 t1134.004 t1136 t1136.001 t1136.002 t1137 t1137.002 t1140 t1190 t1202 t1203 t1204 t1210 t1213 t1213.003 t1216 t1218 t1218.001 t1218.008 t1218.010 t1218.011 t1218.013 t1219 t1486 t1489 t1490 t1496 t1498 t1499 t1499.001 t1505 t1505.003 t1526 t1528 t1543 t1543.003 t1546 t1546.008 t1546.015 t1548 t1548.003 t1550 t1550.003 t1552 t1552.004 t1553 t1553.004 t1555 t1556 t1557 t1557.001 t1558 t1558.003 t1562 t1562.001 t1562.002 t1562.010 t1564 t1564.004 t1566 t1569 t1569.002 t1570 t1574 t1574.001 t1574.002 t1586 t1587 t1587.001 t1588 t1588.002 t1590 t1590.001 t1590.002 t1620 t1649 windows opencanary okta m365 azure bitbucket macos linux sigma
web browsers and third party application might generate similar activity. an initial baseline is required.	t1550 t1550.003 t1558 t1558.003 windows sigma
windows domains with dfl 2003 and legacy systems	t1558 t1558.003 windows sigma