FAQ on the WanaCry ransomware outbreak

Last updated: May 16th 2017 A ransomware variant known as WanaCry/WanaCrypt0r has spread on a massive scale around the world since the 12th of May 2017. For more information about the context with regards to this WanaCry variant, see also our earlier blog. The section below outlines the frequently asked questions and corresponding answers. Q: … Continue reading FAQ on the WanaCry ransomware outbreak

Massive outbreak of ransomware variant infects large amounts of computers around the world

Today, May 12th 2017, a ransomware variant known as WanaCry is being spread on a massive scale around the world. Once a computer is infected it will attempt to infect other machines on the same network using a recently patched vulnerability in the Windows SMB protocol. Update: We have published an FAQ to answer additional … Continue reading Massive outbreak of ransomware variant infects large amounts of computers around the world

Relaying credentials everywhere with ntlmrelayx

Insecurities in NTLM Authentication have been known about for over 15 years. The protocol can be abused to hijack a victim’s session through a process called “relaying”, which abuses a victim’s credentials by forwarding them to a different service than intended. NTLM authentication is still supported and enabled by default in many cases, even though it has been replaced as default authentication method by the more secure Kerberos. In this blog we will demonstrate relaying credentials to LDAP, IMAP and MSSQL with Ntlmrelayx, a Fox-IT extension to the well-known smbrelayx tool.

Snake: Coming soon in Mac OS X flavour

Summary Snake, also known as Turla, Uroburos and Agent.BTZ, is a relatively complex malware framework used for targeted attacks1. Over the past year Fox-IT has been involved in multiple incident response cases where the Snake framework was used to steal sensitive information. Targets include government institutions, military and large corporates. Researchers who have previously analyzed … Continue reading Snake: Coming soon in Mac OS X flavour