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Detecting 5 Current APTs without heavy lifting

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Wireshark

Detecting CVE-2022-30216: Windows Server Service Tampering

In July 2022, Microsoft disclosed a vulnerability in the Windows Server Service that allows an authenticated user to remotely access a local API call on a domain controller, which triggers an NTLM request. This results in a leak of credentials that... Read more »

Another day, another DCE/RPC RCE

CVE-2022-26809 was patched in Microsoft’s previous Patch Tuesday (April 12) and it’s a doozy: remote code execution on affected versions of DCE/RPC hosts. The vulnerability attracted a lot of attention in the security community, both because of its... Read more »

Detecting Windows NFS Portmap vulnerabilities

This month, Microsoft announced two vulnerabilities in portmap, which is part of ONC RPC, on Windows systems. This blog will discuss Zeek detection packages for CVE-2022-24491 and CVE-2022-24497 developed by Corelight Labs. Read more »

Corelight Sensors detect the ChaChi RAT

Recently Blackberry analyzed a new GoLang Remote Access Trojan (RAT) named “ChaChi.” This sample was interesting in that it tunnels information over DNS as its preferred command and control (C2) mechanism. We downloaded two PCAPs from the malware... Read more »

Corelight Sensors detect the ChaChi RAT

Recently Blackberry analyzed a new GoLang Remote Access Trojan (RAT) named “ChaChi.” This sample was interesting in that it tunnels information over DNS as its preferred command and control (C2) mechanism. We downloaded two PCAPs from the malware... Read more »

Community ID support for Wireshark

The past few weeks have seen several developments around Community ID, our open standard for rendering network traffic flow tuples into a concise textual representation. I’d like to summarize them in this blog post. Read more »

Mixed VLAN tags and BPF syntax

This post contains a warning and a solution for anyone using BPF syntax when filtering traffic for network security monitoring.  Read more »

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