Opinion

Bluelisting – pros and cons

I’m sure most of us are familiar with allowlisting. It’s the idea of filtering applications (or emails, depending on the context) and allowing only those that are explicitly listed.

Well, what about ‘bluelisting’, i.e using a database of digital fingerprints to find pornographic content on a drive?

It’s easy to see why such a solution might be attractive. It could help parents to shield their children from pornographic content. It could help businesses avoid the HR and legal fallout from the presence of such content on corporate systems and eliminate the hit on corporate bandwidth associated with pornographic downloads. And it could help law enforcement agencies track down those storing illegal images.

However, it seems to me that while such an approach may tell us ‘What?’ and ‘Where?’, it does little to tell us ‘Who?’ and ‘How?’; and these are the key questions in a forensic investigation. There have already been several cases of people accused of downloading pornographic content who have claimed that a Trojan was responsible for the download: man cleared of porn charges, trojan responsible for porn and new trial in porn case.

Bluelisting – pros and cons

Your email address will not be published.

 

Reports

The SessionManager IIS backdoor

In early 2022, we investigated an IIS backdoor called SessionManager. It has been used against NGOs, government, military and industrial organizations in Africa, South America, Asia, Europe, Russia and the Middle East.

APT ToddyCat

ToddyCat is a relatively new APT actor responsible for multiple sets of attacks against high-profile entities in Europe and Asia. Its main distinctive signs are two formerly unknown tools that we call ‘Samurai backdoor’ and ‘Ninja Trojan’.

WinDealer dealing on the side

We have discovered that malware dubbed WinDealer, spread by Chinese-speaking APT actor LuoYu, has an ability to perform intrusions through a man-on-the-side attack.

APT trends report Q1 2022

This is our latest summary of advanced persistent threat (APT) activity, focusing on events that we observed during Q1 2022.

Subscribe to our weekly e-mails

The hottest research right in your inbox