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General Security Discussions
Signed Malware
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<blockquote data-quote="Deleted member 65228" data-source="post: 709416"><p>Digitally signed malware will rise over the next few years in my opinion.</p><p></p><p>Malware authors can obtain stolen digital signatures on various hacking forums, some services still provide individual licenses, and other times there are offered services for someone to purchase a certificate on their behalf, likely using fake/proxy identities.</p><p></p><p>Thankfully, Secure Boot enforces a Microsoft co-signed certificate (requiring an Extended Validation certificate prior to the co-sign) for kernel-mode software, which is a hell of a lot trickier for a malware author to obtain. Although likely irrelevant since ransomware, banking malware and crypto-currency mining is the trend in the malware industry as of right now.</p><p></p><p>Malware authors can also make it appear that a PE was digitally signed but the certificate won't be genuine/valid and thus it won't be trusted/verified. It's recommended to check on these characteristics instead of blindly trusting a digital certificate, as well. I've seen a few samples in the wild doing this as of lately.</p></blockquote><p></p>
[QUOTE="Deleted member 65228, post: 709416"] Digitally signed malware will rise over the next few years in my opinion. Malware authors can obtain stolen digital signatures on various hacking forums, some services still provide individual licenses, and other times there are offered services for someone to purchase a certificate on their behalf, likely using fake/proxy identities. Thankfully, Secure Boot enforces a Microsoft co-signed certificate (requiring an Extended Validation certificate prior to the co-sign) for kernel-mode software, which is a hell of a lot trickier for a malware author to obtain. Although likely irrelevant since ransomware, banking malware and crypto-currency mining is the trend in the malware industry as of right now. Malware authors can also make it appear that a PE was digitally signed but the certificate won't be genuine/valid and thus it won't be trusted/verified. It's recommended to check on these characteristics instead of blindly trusting a digital certificate, as well. I've seen a few samples in the wild doing this as of lately. [/QUOTE]
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