Alerts from Fortigate regarding SAMBA and SMB

[dhammett]

Morning everyone!

I have a strange issue happening every 5 minutes overnight. Hopefully the logs will help explain because I have no clue why a users computer is trying to do an SMB share over night every 5 minutes and to another internal IP address when that address isn't even available in our subnet(s)... This alert string started Sunday 12:04AM and every 5 minutes sent me an email alert until 4:46AM Sunday.  As of this writing at 9:18AM I have not seen any new emails since 4:46AM.  I am running firmware 6.4.5.

Message meets Alert condition

date=2021-05-02 time=04:42:44 devname=FG101E4Q1700XXXX devid=FG101E4Q1700XXXX eventtime=161994856468459XXXX tz="-0500" logid="0000000013" type="traffic" subtype="forward" level="notice" vd="root" srcip=10.1.1.2 srcport=27551 srcintf="lan" srcintfrole="lan" dstip=10.0.0.49 dstport=139 dstintf="wan1" dstintfrole="wan" srccountry="Reserved" dstcountry="Reserved" sessionid=27115274 proto=6 action="deny" policyid=8 policytype="policy" poluuid="01ca75aa-d9d3-51e7-7b0d-95c6322a96b2" policyname="Restricted Services" user="PCIADMIN" authserver="PCI-Server2016" dstuser="LPA" service="SAMBA" trandisp="noop" duration=0 sentbyte=0 rcvdbyte=0 sentpkt=0 appcat="unscanned" crscore=30 craction=131072 crlevel="high" mastersrcmac="98:f2:b3:b7:6X:XX" srcmac="98:f2:b3:b7:6X:XX" srcserver=0 

Message meets Alert condition

date=2021-05-02 time=04:42:42 devname=FG101E4Q1700XXXX devid=FG101E4Q1700XXXX eventtime=1619948562496900502 tz="-0500" logid="0000000013" type="traffic" subtype="forward" level="notice" vd="root" srcip=10.1.1.2 srcport=27550 srcintf="lan" srcintfrole="lan" dstip=10.0.0.49 dstport=445 dstintf="wan1" dstintfrole="wan" srccountry="Reserved" dstcountry="Reserved" sessionid=27115260 proto=6 action="deny" policyid=8 policytype="policy" poluuid="01ca75aa-d9d3-51e7-7b0d-95c6322a96b2" policyname="Restricted Services" user="PCIADMIN" authserver="PCI-Server2016" dstuser="LPA" service="SMB" trandisp="noop" duration=0 sentbyte=0 rcvdbyte=0 sentpkt=0 appcat="unscanned" crscore=30 craction=131072 crlevel="high" mastersrcmac="98:f2:b3:b7:6X:XX" srcmac="98:f2:b3:b7:6X:XX" srcserver=0

Thanks for any help possible!