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Malware spreading by fake Amazon notifications

We’ve recently seen a return of email spam campaign featuring fake Amazon.com notifications. This appeared in the Holiday shopping season last year coming from disposable domains, and is now back, apparently coming from compromised domains in the UK. Here’s an example: Of course, the attachment contains a malicious trojan that allows remote access to Windows […]

AOL’s DMARC change fends off Com Spammers attack, but data breach still not explained

In the past two weeks it’s quite possible that you received spam apparently from a friend’s AOL account, saying something like Have a nice day or People say it really works and then a link to what looks like a news magazine web site talking about diet pills. Here’s one of several that I received. […]

Cloudmark’s 2014 Q1 Global Messaging Threat Report

Current events around the world became the focal point of many malicious and innocuous spam campaigns in the email and mobile messaging space this quarter. In Cloudmark’s 2014 Q1 Global Messaging Threat Report we’ve detailed several malicious campaigns that have reverted to a more old fashioned way of distributing malware, email spam, following the arrest […]

Twenty Years of Spam

April 12th is the 20th anniversary of the first large scale commercial spam – the infamous “Green Card Lawyers” message that was posted to every newsgroup on Usenet News (right). Though there were attempts at spamming starting as early as 1978, they went out to hundreds of users rather than the hundreds of thousands that […]

Spammers Tap Regional Operators to Send SMS Spam from U.S. To Malaysia and Mexico

Cloudmark has observed that in some cases different categories of SMS spammers target different types of US Regional Mobile Operators, also known as tier 2 or tier 3 operators. Mobile operators are divided into different tiers depending on whether they fully own the network that they use to deliver voice and data services (tier 1), […]

SMS Phishers Exploit Twilio and ow.ly to Steal Mobile Account Logins

Via the GSMA Spam Reporting Service, we’ve been receiving reports of an SMS phishing attack aimed at the customers of several large mobile providers in the US. And in an unusual twist, the phishers are trying to evade anti-abuse services by showing their malicious content only to mobile users. More than a quarter of a million mobile users. The […]

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