t1021.002 | LoFP

t1021.002

Title	Tags
a file server may experience high-demand loads that could cause this analytic to trigger.	t1021.002 endpoint splunk
administrators	t1021 t1021.002 windows sigma
administrators can leverage psexec for accessing remote systems and might pass `accepteula` as an argument if they are running this tool for the first time. however, it is not likely that you'd see multiple occurrences of this event on a machine	t1021.002 endpoint splunk
although uncommon, administrators may leverage impackets tools to start a process on remote systems for system administration or automation use cases.	t1021.002 t1021.003 t1047 t1543.003 endpoint splunk
connections from local or private ip addresses to smb shares without signing or encryption enabled for older systems or misconfigured environments. apply additional tuning as needed.	t1021 t1021.002 windows sigma
domain controllers acting as printer servers too? :)	t1021 t1021.002 windows sigma
domain controllers that are sometimes, commonly although should not be, acting as printer servers too	t1021 t1021.002 zeek sigma
false positives may occur if a user called rundll32 from cli with no options	t1021 t1021.002 t1569 t1569.002 t1570 windows sigma
false positives should be rare, investigate matches and apply additional filters as needed.	t1021.002 t1055 t1559 endpoint splunk
legitimate activity by administrators and scripts	t1021 t1021.002 windows sigma
legitimate administrator activity	t1021 t1021.002 t1021.004 t1046 t1490 t1505 t1505.004 t1562 t1562.002 t1569 t1569.002 windows macos sigma
linux hostnames composed of 16 characters.	t1021 t1021.002 windows sigma
possible, different agents with a 8 character binary and a 4, 8 or 16 character service name	t1021 t1021.002 t1569 t1569.002 t1570 windows sigma
puas can be used in a legitimate manner. therefore, some of the named pipes identified and added may cause false positives. filter by process name or pipe name to reduce false positives.	t1021.002 t1055 t1559 endpoint splunk
some false positives may occur from rmm software used in your environment. apply filters based on known legitimate rmm software in your environment to reduce false positives.	t1021.002 t1055 t1559 endpoint splunk
system administrators may use looks like psexec for troubleshooting or administrations tasks. however, this will typically come only from certain users and certain systems that can be added to an allow list.	t1021.002 endpoint splunk
unknown	t1003 t1003.001 t1003.002 t1003.003 t1003.004 t1003.006 t1005 t1008 t1010 t1012 t1018 t1020 t1021 t1021.001 t1021.002 t1021.003 t1021.005 t1021.006 t1027 t1027.001 t1027.003 t1027.004 t1027.005 t1027.009 t1027.010 t1033 t1036 t1036.003 t1036.005 t1036.007 t1040 t1046 t1047 t1048 t1048.003 t1049 t1053 t1053.002 t1053.005 t1055 t1055.001 t1055.003 t1055.009 t1055.011 t1055.012 t1056 t1056.001 t1057 t1059 t1059.001 t1059.002 t1059.003 t1059.004 t1059.005 t1059.006 t1059.007 t1068 t1069 t1069.001 t1069.002 t1069.003 t1070 t1070.003 t1070.004 t1070.005 t1070.006 t1071 t1071.001 t1071.004 t1072 t1074 t1074.001 t1078 t1078.001 t1078.003 t1078.004 t1082 t1083 t1087 t1087.001 t1087.002 t1087.004 t1090 t1090.001 t1090.003 t1095 t1098 t1102 t1102.001 t1102.003 t1105 t1106 t1110 t1110.001 t1112 t1113 t1114 t1114.001 t1115 t1119 t1123 t1127 t1127.001 t1133 t1134 t1134.001 t1134.002 t1134.003 t1135 t1136 t1136.001 t1136.002 t1137 t1137.002 t1137.006 t1140 t1176 t1176.001 t1185 t1187 t1190 t1195 t1195.001 t1197 t1199 t1200 t1201 t1202 t1203 t1204 t1204.001 t1204.002 t1204.004 t1207 t1210 t1211 t1212 t1216 t1216.001 t1217 t1218 t1218.001 t1218.002 t1218.003 t1218.005 t1218.007 t1218.009 t1218.010 t1218.011 t1218.013 t1219 t1219.002 t1220 t1222 t1222.001 t1482 t1484 t1485 t1486 t1489 t1490 t1491 t1491.001 t1497 t1497.001 t1498 t1499 t1499.004 t1505 t1505.003 t1505.004 t1518 t1518.001 t1526 t1528 t1529 t1531 t1537 t1539 t1543 t1543.001 t1543.003 t1543.004 t1546 t1546.001 t1546.002 t1546.003 t1546.007 t1546.008 t1546.009 t1546.010 t1546.011 t1546.012 t1546.015 t1547 t1547.001 t1547.003 t1547.004 t1547.005 t1547.006 t1547.008 t1547.009 t1547.010 t1548 t1548.002 t1552 t1552.001 t1552.002 t1552.004 t1552.006 t1553 t1553.004 t1555 t1555.003 t1555.004 t1555.005 t1556 t1556.002 t1557 t1557.001 t1557.003 t1558 t1558.003 t1559 t1559.001 t1559.002 t1560 t1560.001 t1562 t1562.001 t1562.002 t1562.004 t1562.006 t1563 t1563.002 t1564 t1564.001 t1564.002 t1564.003 t1564.004 t1565 t1566 t1566.001 t1566.002 t1567 t1567.002 t1569 t1569.002 t1571 t1572 t1573 t1574 t1574.001 t1574.005 t1574.006 t1574.008 t1574.011 t1584 t1587 t1587.001 t1588 t1588.001 t1588.002 t1593 t1593.003 t1595 t1608 t1609 t1611 t1615 t1621 t1649 aws gcp azure m365 cisco zeek windows kubernetes rpc_firewall onelogin okta linux macos sigma
update the excluded named pipe to filter out any newly observed legit named pipe	t1021 t1021.002 zeek windows sigma
vulnerability scanners or system administration tools may also trigger this detection. filter as needed.	t1003.002 t1021.002 t1087 T1110.004 t1135 endpoint splunk