Redirecting Cobalt Strike DNS Beacons

While conducting a Red Team assessment, many factors come into play that result in success or failure of the operation. One such factor is keeping your Command and Control (C2) infrastructure hidden from the opposing (Blue) team. If your C2 is found and blocked…

Phishing for “Access”

Changing Phishing Tactics Require Closer User and Defender Attention

Steve Borosh

A few interesting and concerning phishing methods appeared this year. Just search Google for “DDE attack” or…

Bug Hunt: Out of Band Resource Loading

On a recent bug hunt targeting *.adobe.com, I found a small flaw in one of their external-facing web servers. While enumerating publicly available web servers belonging to Adobe, I found a web application labeled “Target DB Browser”.

Bypassing Windows Attachment Manager

Starting with Windows XP Service Pack 2, Microsoft introduced the “Windows Attachment Manager”. This feature will “block” certain file types from being executed after downloading over the Internet. “If the attachment is in the list of high risk file types and is…

Interacting with MacOS terminal windows for lateral movement

Recently, I had a situation where the possibility of manipulating a MacOS terminal window through Empire might lead to lateral movement to a restricted area. Typically, I may “backdoor” an ssh configuration file as described…

Attack Infrastructure Log Aggregation and Monitoring

This post was co-written by Steve Borosh (@424f424f) and Jeff Dimmock (@bluscreenofjeff).

Monitoring attack infrastructure can prove to be as important as our attacking. Quickly hiding from investigating blue…

Phishing Against Bromium

The purpose of this post is to re-iterate that no single solution should be relied upon as a one-stop solution against all attackers. I respect the advances Bromium has made in security however, a defense-in-depth approach should always be taken regarding enterprise security.