[FW1] Firewall log info

[security]

Hi all,   I observed this on Firewall log...   Source                            Destination       Service         action   168.100.189.180                  Firewall         ICMP            drop thru rulebase no.. 203.166.4.236                      Firewall        ICMP            drop thru rulebase no...   Is that any of my network workstations are compromised ?   regs   sat