Category: SANS Internet Storm Center, InfoCON: green

Simple SSH Backdoor, (Mon, Jun 2nd)

For most system and network administrators, the free SSH client Putty has been their best friend for years! This tool was also (ab)used by attackers that deployed a trojanized version[1]. Microsoft had the good idea to include OpenSSH (beta version)…

YARA 4.5.3 Release, (Sun, Jun 1st)

YARA 4.5.3 was released with 5 bugfixes. This article has been indexed from SANS Internet Storm Center, InfoCON: green Read the original article: YARA 4.5.3 Release, (Sun, Jun 1st)

A PNG Image With an Embedded Gift, (Sat, May 31st)

While hunting, I found an interesting picture. It's a PNG file that was concatenated with two interesting payloads. There are file formats that are good candidates to have data added at the end of the file. PNG is the case…

Usage of “passwd” Command in DShield Honeypots, (Fri, May 30th)

DShield honeypots [1] receive different types of attack traffic and the volume of that traffic can change over time. I've been collecting data from a half dozen honeypots for a little over a year to make comparisons. This data includes: …