ESET Ireland said Facebook users in the Czech Republic had been targeted with a fake news report on a “deadly attack in Prague”. Soon after the Facebook scam was made public in the Czech media, the scammers turned their attention to Slovakia and duplicated the scam to find new victims.
“From what we have learned about this campaign, the attack may be designed to continue in other countries,” warned Luká?s ?Stefanko, a malware researcher at ESET.
“The scam starts with a compromised user account sharing or commenting on the status of a terrorist attack,” an article on the ESET Ireland blog said. “The victim’s friends are tagged in this comment as well.
“When a user clicks on this hoax, he or she is redirected to a phishing webpage that requests his or her Facebook credentials to proceed to a site with more information about the incident. If the user enters the credentials, be they genuine or not, they are redirected to another fake Facebook page.
“As with other tragic events, i.e. the crash of Malaysia Airlines Flight 370, the Boston marathon attack, or recent terrorist attacks in Europe — these incidents become an opportunity for criminals to trick victims with social engineering techniques.”
ESET Ireland said the scam spreads quickly because Facebook users often share stories without actually reading them.
“Scam campaigns, if designed to be emotionally appealing, fare surprisingly well because of our unfortunate behavior,” said Mr ?Stefanko.
“In the past weeks, there were 84 domains registered by the same person. Several of them have the Facebook phishing functionality, while others could be used in future for a larger scale attack.
“After learning that ESET, possibly along with other security vendors blocks the domains, they move the phishing websites to other newly established domains. It’s a never-ending cat-and-mouse game.”
“We urge Facebook users to pay attention to what they are about to like or share.”
The security experts also said that anyone who thinks they might have been tricked into sharing their Facebook credentials, should change their passwords.
Furthermore, if users have been using the same password across multiple services, they should change the password wherever applicable.