Rustock Botnet: Dead Or Just Reloading?

Reports indicate that the massive drop in spam levels are linked to the sudden disappearance of the Rustock botnet. However, recent history suggests the interruption may only be temporary. Spamhaus’s Composite Spam Blocklist CBL claims that dozens of Rustock’s internet servers, which for years ha...

Spam Volume Is Way Down…But Why?

The volume of spam e-mail is down…way down. That’s the good news. But experts aren’t exactly sure what’s caused the precipitous drop in spam e-mail or how long it will last. As Brian Krebs reports on his blog, mail security firm M86 is seeing a 40% decline in spam volume since the beginning of...

Some Pushdo Variants Resuming Spam Operations

A few days after the majority of the command-and-control servers belonging to one of the variants of the Pushdo botnet were taken offline, some researchers say that there are indications that portions of the botnet are back to their old tricks, downloading new spam templates for a resumption of...

Pushdo Botnet Making the Rounds

More than 300 Web sites are being pestered by infected computers that are part of the Pushdo botnet, according to security researchers. Read the full article. Security Central...

Infiltrating the Pushdo Botnet

It’s very rare that we researchers get a chance to explore the inner workings of a botnet command and control server. Detailed insight into the botnet server or command component can give us valuable information about the motives of the botnet and possibly the bad guys behind it. But granting...

Outlook Web Access Attack Using Pushdo Botnet

Here are some technical details on the Outlook Web Access phishing scheme. 1. The Spam According to our preliminary research, the spam emails which attacked OWA users, including Kaspersky, were sent using the pushdo botnet – which is based on malware from the Backdoor.Win32.NewRes family. These...