Is kerberos unconstrained delegation partially safer than constrained delegation?

When you’re using unconstrained delegation, a service A is allowed to authenticate as the user B to any other service. This happens because the user B sends its TGS along with its TGT to the service A, and service A can then request other … Continue reading Is kerberos unconstrained delegation partially safer than constrained delegation?

Satan ransomware rebrands as 5ss5c ransomware

The cybercrime group that brought us Satan, DBGer and Lucky ransomware and perhaps Iron ransomware, has now come up with a new version or rebranding named “5ss5c”.
In a previous blog post, Satan ransomware adds EternalBlue exploit, I described ho… Continue reading Satan ransomware rebrands as 5ss5c ransomware

‘China Chopper’ web shell makes a comeback in Lebanon, other Asian countries

Malicious code first discovered nine years ago that has historically been used by groups associated with Chinese state-backed hacks has made a comeback, according to new research from Cisco’s Security and Intelligence Research Group, Talos. The hacking tool is web shell known as China Chopper. A web shell is a script that allows attackers to remotely access servers running web applications. This particular web shell has long been known to be an exploit that’s often impervious to being outed and detected. “China Chopper is a slick little web shell that does not get enough exposure and credit for its stealth,” FireEye researchers wrote in 2013 in their blog on the matter. China Chopper’s code as historically been small, according to security researcher Keith Tyler, who wrote on the tool in 2012. That much appears to be the same now — Talos researchers note the most recent campaign has been “extremely simple,” containing just one […]

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Continue reading ‘China Chopper’ web shell makes a comeback in Lebanon, other Asian countries