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Improving Enterprise Cybersecurity With XDREnterprises are looking at eXtended Detection and Response technologies to improve their abilities to detect, and respond to, threats. While endpoint detection and response is not new to enterprise security, organizations have to improve network visibility, expand data collection and expand threat hunting capabilites if they want their XDR deployments to succeed. This issue of Tech Insights also includes: a market overview for XDR from Omdia, questions to ask before deploying XDR, and an XDR primer.
Incident Readiness and Building Response Playbook
In this special report, learn the Xs and Os of any good security incident readiness and response playbook.
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User Rank: Ninja
6/25/2019 | 10:53:56 AM
Write-Host " "
Write-Host "Block Triton ICS Port 39929"
Write-Host "-------------------------------"
$Name = "Triton-ICS-Attack-Port-39929"
$Triton = (Get-NetFirewallRule -DisplayName $Name)
$TPort = (Get-NetFirewallrule -DisplayName $Name | Get-NetFirewallPortFilter).LocalPort
if ( ( ($Triton).DisplayName -eq $Name) -And ($TPort -eq 39929) ) {
Write-Host $Name "exists - ok"
} else {
New-Netfirewallrule -Action Block -Enabled True -Direction Inbound -LocalPort 39929 -RemoteAddress Localsubnet -Name $Name -Profile Any -Protocol TCP -DisplayName $Name -RemotePort Any -Description "Triton-ICS-Attack-Port-39929"
Get-NetFirewallRule -Name $Name
}
Antivirus Entry - Go to antivirus and program the software to look for "imain.bin, inject.bin and trilog.exe". Also, I recommend using Comodo HIDS or other software solutions that initiate system baselines. If the system identifies any changes, then the application would stop the file from executing if it was considered nefarious.
From a linux standpoint:
iptables -I INPUT 1 -p tcp -m multiport --dport 39929 -m conntrack --ctstate NEW,ESTABLISHED -j DROP (iptables FW that tracks and Drops the port)
or
ufw allow in proto tcp from 0.0.0.0/0 to 0.0.0.0 port 39929 comment "Triton Blocked Port" (UFW Firewall Entry)
Download chkrootkit and/or rkhunter on the Linux/Unix machines to help find this potential problem.
Todd S,
Enterprise Architect
https://itotsnetworks.com