A new web skimming campaign has been discovered, which targets multiple organizations in the food and retail industries. This campaign was unique as it included three advanced concealment techniques.
One involved using the 404 error page to hide malicious code, making it difficult to mitigate and detect, whereas the other two were obfuscation techniques.
A web Skimming attack is when threat actors insert malicious codes into the website to extract data from an HTML form when the victims fill it. It is one of the sophisticated techniques threat actors use for various data extraction attacks.
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A new campaign with 3 variations
The new campaign targeted multiple Magento and WooCommerce websites and consisted of three main parts: loader, malicious attack code, and data exfiltration. However, according to the reports shared with Cyber Security News, this campaign directly exploited multiple victim websites.
However, there were 3 variations discovered in this campaign. These variations were improvements developed by the attacker within a short period of time to prevent detection and mitigation.
Two variations were similar, but the third one was unique as the attackers used the website’s default 404 error page to hide their malicious code.
Using the website’s default 404 error page is unique and can result in improved hiding and evasion. Though the loaders on the affected websites were removed, the malicious comments on the website’s default 404 page still remain. This can potentially allow the skimmer to reactivate the attack.
A complete report has been published by Akamai, which provides detailed information about the campaign, variations, and other information.
Indicators of Compromise
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