Grum Botnet Attempts Another Comeback, Fails Again

The Grum botnet, which Dutch authorities and security researchers knocked offline earlier this summer, made a second, unsuccessful attempt at a comeback over the weekend when the bot herders stood up two new command-and-control servers in Turkey. The revival was short-lived however, and both C&Cs...

Grum Botnet Briefly Revived, Now Dead Again

Botnets are a lot like dandelions; you think they’re dead and then when you’re not looking they pop right back up. It’s happened time and again in the malware ecosystem and the latest member of the undead botnet society is Grum, which was only just taken down last week. Over the weekend several o...

Researchers Pull the Plug on Remaining Grum Botnet C&C Servers

Just a couple of days after authorities in the Netherlands pulled the plug on two of the four command-and-control servers behind the Grum spam botnet, the remaining C&C servers have been taken offline as well, thanks to a cooperative effort among researchers. As a result, the number of...

Dutch Authorities Knock Out Grum Botnet C&C Servers

Dutch authorities have knocked out two of the command-and-control servers for one of the top spam-producing botnets, known as Grum. The action was not a complete knockout though, as there are still two other C&C servers at work, but researchers are optimistic that the volume of spam will drop as ...