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Mac trojan posing as a PDF file

23

Sep

2011

We may have come across a Mac malware in the making. Detected as Trojan-Dropper:OSX/Revir.A, the malware disguises as a PDF file to trick user into triggering its payload. It starts by dropping a PDF file embedded in its body and opens it in an attempt to prevent the user from noticing the ongoing suspicious activity. […]

Category General Written by F-Secure Antivirus Research Weblog 0 Comments

Malicious spam campaign: Credit Card Overdue

30

Jun

2011

We are currently seeing a large scale malicious spam campaign that claims to be a “Credit Card Overdue” notice. The campaign is originating from one of the Cutwail spambot variants. The theme has no specific credit card brand, possibly because the spammer thought a generic template may entice more victims. The spam message claims the […]

Category Security Written by M86 Security Labs Blog 0 Comments

Krebs/Danchev Trojan Pushes Adult Website

28

Jun

2011

Complete malware analysis is often limited by real-world circumstances. Many of the trojans that we analyze will attempt to connect to a remote server for further instructions. At this point, we know that the software is not legitimate and should be blocked from installation on our customer’s computers. We don’t really need to examine it […]

Category General Written by F-Secure Antivirus Research Weblog 0 Comments

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Mac trojan posing as a PDF file

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