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Intelligence Briefings from the War on Spam

Archive for the ‘SMS / Texting’ Category

Pinterest hit by the Com Spammers. Dr. Oz says he is not responsible.


Thursday, June 19, 2014 by Andrew Conway

Pinterest was hit this week by a vast diet pill spam attack from a well established cyber criminal gang we call the Com Spammers. As well as attacks on social networking sites such as Pinterest, they have also been active for years in email and SMS spam. Their landing pages often contain video clips from […]

Cruises and Stolen Tax Returns in the Windy City


Monday, June 16, 2014 by Tom Landesman

We’ve seen an interesting shift in Chicago’s SMS spam over the past few months. At the start of 2014, up until mid-April, bank phishing attempts had been the dominate flavor of SMS sent unsolicited to phones in the city. However, Floridian Cruise spam has taken a big jump in numbers this spring. So far this […]

World Cup Generates World Wide Spam


Friday, June 13, 2014 by Andrew Conway

As World Cup fever takes the globe by storm, spammers are capitalizing on the excitement around the event. Here’s an extract from one example we have seen. It’s an advanced fee scam, similar to the “Nigerian Gold” or “Spanish Prisoner” con tricks. The victim is asked to pay an ever increasing series of fees in order […]

How to Report Text Message Spam: iOS7 iPhone


Tuesday, June 03, 2014 by Tom Landesman

Plagued with annoying spam texts on your iPhone? Report them to the GSMA spam reporting service! On most networks this can be done by forwarding them to 7726 (that’s S-P-A-M on your phone’s keypad.) Reporting these spam messages helps your mobile operator to take action against spammers and prevent further spam. Please note: while many mobile […]

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


Tuesday, April 29, 2014 by Andrew Conway

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


Thursday, April 17, 2014 by Tom Landesman

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 […]

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


Thursday, March 27, 2014 by Jason

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), […]

Go Phish, for Bank Cards


Tuesday, February 25, 2014 by Tom Landesman

With the New Year, it appears SMS scammers in the U.S. have taken a renewed interest in bank and account phishing mobile users. In January alone, more than half of all SMS spam reported via the GSMA Spam Reporting Service within the US were phishing attempts. From targeting prepaid debit cards for Child Support Recipients […]

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


Thursday, February 13, 2014 by Mike Acar

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 […]

Guatemalan scammers taking lessons from Nigeria?


Thursday, February 06, 2014 by Emmet Cassidy

When it comes to exports and Guatemala, we generally think coffee. However, while poring over our Mobile messaging data, we discovered another Guatemalan export: Nigerian-style scam campaigns. Over the past two to three years, mobile phone users in the USA have been receiving SMS messages, originating in Guatemala, informing them that they have won a […]


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