Crimes without punishment: in-depth analysis of JS-sniffersJS-sniffers pose a growing threat by attacking online stores and stealing payment data and credentials of their users. Group-IB experts have researched this type of malware and have discovered at least 38 families of JS-sniffers, whereas only 12 were known previously.
Group-IB team is preparing a detailed report on JS-sniffers.
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Key facts
Group-IB experts have discovered 38 different JS-sniffer families, whereas only 12 were known previously
The total daily number of visitors of all the infected sites exceeds 1.5 million people
By selling compromised payment data cybercriminals can earn from $1 to $5 per card
JS-sniffers can be bought or rented on underground forums, with their price ranging from $250 to $5,000
This class of malware seemed to be a rather primitive threat to large players like banks and payment systems, since JS-sniffers were believed to target small online stores. Now, however, it is time to question that belief. When a site is infected, everyone is involved in the chain of victims — end users, payment systems, banks that issued compromised cards, and companies that sell their goods and services online.
The urgency of the problem is linked to its potentially huge audience (today, almost all of us use online stores). Group-IB Threat Intelligence specialists continuously monitor the appearance of new JS-sniffers and appeal to the cybersecurity community to take a closer look at this growing threat.
Viktor Okorokov
Threat Intelligence analyst
Group-IB research on targeted attack groups
March 2019
Crimes without punishment: in-depth analysis of JS-sniffers
JS-sniffers pose a growing threat by attacking online stores and stealing payment data and credentials of their users. (Group-IB team is preparing a detailed report on JS-sniffers);
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JS-sniffers pose a growing threat by attacking online stores and stealing payment data and credentials of their users. (Group-IB team is preparing a detailed report on JS-sniffers);
Subscribe Learn more October 2018
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Introducing the research on cyber-security trends and predictions for the next year. Plan your cyber security strategy effectively.
Request Learn more September 2018
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Estimation of the number of login and passwords leaks of cryptoсurrency exchanges users and analysis their nature. Recommendations for ensuring security of users and exchanges.
Request Learn more May 2018
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Request Learn more December 2017
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This hacker group is noticeable for 1.5 years of silent operations and multiple attacks. They still pose a threat: learn about MoneyTaker techniques and indicators of compromise now.
Request Learn more October 2017
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Introducing the research on cyber-security trends and predictions for the next year. Plan your cyber security strategy effectively.
Request Learn more May 2017
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Request Learn more March 2016
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Request Learn more December 2014
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