Category: Detection/Reduction/Prevention Overview Remote Desktop Protocol (RDP) is how users of Microsoft Windows systems can get a remote desktop on systems remotely to manage one or more workstations and/or servers. With the increase of organizations opting for remote work, so to has RDP usage over the internet increased. However, RDP was not initially designed with the … Continue reading Detecting and Protecting when Remote Desktop Protocol (RDP) is open to the Internet
Category: CIRT
SnapMC skips ransomware, steals data
Over the past few months NCC Group has observed an increasing number of data breach extortion cases, where the attacker steals data and threatens to publish said data online if the victim decides not to pay. Given the current threat landscape, most notable is the absence of ransomware or any technical attempt at disrupting the … Continue reading SnapMC skips ransomware, steals data
Detecting and Hunting for the PetitPotam NTLM Relay Attack
Overview During the week of July 19th, 2021, information security researchers published a proof of concept tool named “PetitPotam” that exploits a flaw in Microsoft Windows Active Directory Certificate Servers with an NTLM relay attack. The flaw allows an attacker to gain administrative privileges of an Active Directory Certificate Server once on the network with … Continue reading Detecting and Hunting for the PetitPotam NTLM Relay Attack
Detecting and Hunting for the Malicious NetFilter Driver
Category: Detection and Threat Hunting Overview During the week of June 21st, 2021, information security researchers from G Data discovered that a driver for Microsoft Windows named “netfilter.sys” had a backdoor added by a 3rd party that Microsoft then signed as a part of the Microsoft OEM program. The malicious file is installed on a … Continue reading Detecting and Hunting for the Malicious NetFilter Driver