Showing 49 results for: Spam ×

Did Grum Really Get Killed?

For several years before July 2012 takedown, Grum was one of the notorious spam botnets and at one time was responsible for more than 30% of spam worldwide. Last year's Grum botnet takedown was a victorious feat by the security...

More on the TrustKeeper Phish

Yesterday we alerted people to a widespread phishing campaign misusing Trustwave's brand. Here we go into some more detail about the campaign. First up, I'd like to repeat, these messages did not originate from Trustwave, and at no time was...

An Analysis of a Fake Vodafone Bill PDF File

We haven't come across many malicious PDF files recently in our spam traps, so when we found this message, ostensibly from Vodafone Deutschland, we naturally took a closer look. In this example, the cyber crooks are targeting Vodafone Deutschland customers...

Spam Down II: Grum Down

So the media is abuzz with news of the takedown of the Grum botnet, which has caused a big reduction in spam. Make no mistake this is welcome news indeed, and credit to Atif Mushtaq from FireEye for taking action....

Spam Down: Where is Lethic?

At Trustwave SpiderLabs we keep a close eye on spam trends. We keep and publish a bunch of statistics relating to spam, and last week people were asking me where these were as the old M86 website is phased out....

Wham Bam, the Cutwail/Blackhole Combo

Over the past few weeks we have seen a resurgence of malicious spam with links leading off to the Blackhole exploit kit. Last week about 2% of spam hitting our traps fell into this category, which is pretty significant given...

Pwning a Spammer's Keylogger

Recently, while scrounging around our spam traps, I spotted this ordinary piece of malicious spam. It uses a very simple social engineering trick, speculating about Obama's sexual orientation and a link to a supposed picture to prove it. There was...