Use this splunk search to get datails about alert actions | rest /services/saved/searches splunk_server=local count=0 |table title,actions
Reflected DDoS Attack
(in reflected attacks a lotof external benign src’s send a lotof packets toward our servers, because our server’s IP spoofed before in request packets and were sent by attacker toward trusted servers and those trusted servers replied us instead of attacker ! ) index=firewall dest=(your company IP range, for example: 184.192.0.0/16) (transport=”udp” AND src_port IN(123,1900,0,53,5353,27015,19,20800,161,389,111,137,27005,520,6881,751,11211,1434,27960,17) AND […]
REST Call for a get details about Alert cron_schedules
Use this splunk search to show Alert’s cron_schedule details: | rest /services/saved/searches splunk_server=local count=0 | search “cron_schedule”=”*/*” |table title,cron_schedule,author
Linux Deletion of SSL Certificate (mitre : T1485 , T1070.004 , T1070)
| tstats `summariesonly` count min(_time) as firstTime max(_time) as lastTime FROM datamodel=Endpoint.Filesystem where Filesystem.action=deleted Filesystem.file_path = “/etc/ssl/certs/*” Filesystem.file_path IN (“*.pem”, “*.crt”) by _time span=1h Filesystem.file_name Filesystem.file_path Filesystem.dest Filesystem.process_guid Filesystem.action | `drop_dm_object_name(Filesystem)` |rename process_guid as proc_guid |join proc_guid, _time [ | tstats `summariesonly` count FROM datamodel=Endpoint.Processes where Processes.parent_process_name != unknown by _time span=1h Processes.process_id Processes.process_name Processes.process Processes.dest Processes.parent_process_name Processes.parent_process Processes.process_path Processes.process_guid | `drop_dm_object_name(Processes)` |rename process_guid as proc_guid […]
port scan attack (by juniper)
index=* sourcetype=”juniper:firewall” src!=”192.168.*” | bin _time span=5m | stats dc(dest_port) as distinct_port by src,dest,_time |where distinct_port >1000
DLL Serach Oreder Hijacking (mitre : T1574.001)
index=* ((((EventCode=”4688″ OR EventCode=”1″) AND ((CommandLine=”*reg*” CommandLine=”*add*” CommandLine=”*/d*”) OR (CommandLine=”*Set-ItemProperty*” CommandLine=”*-value*”)) AND (CommandLine=”*00000000*” OR CommandLine=”*0*”) AND CommandLine=”*SafeDllSearchMode*”) OR ((EventCode=”4657″) ObjectValueName=”SafeDllSearchMode” value=”0″)) OR ((EventCode=”13″) EventType=”SetValue” TargetObject=”*SafeDllSearchMode” Details=”DWORD (0x00000000)”)) | fields EventCode,EventType,TargetObject,Details,CommandLine,ObjectValueName,value
