Swizzor is a small trojan-downloader that can end up on a user's system when they are browsing the Web. The trojan silently downloads and installs additional trojan downloaders and adware components.
Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.
This Trojan variant is a PE executable file that is packed with a custom-made file compressor. Upon execution, this Malware tries to download a file from the following website:
The Trojan uses the "KRSystem v1.0" as an user-agent ID and it accesses the website with a specially constructed URL. The downloaded files will be stored in the directory for temporary files:
%random% stands for a randomly generated name. If the download operation is successful, the Trojan runs the downloaded files afterwards. This particular Trojan variant downloads another downloader that in turn downloads the second level downloader. That file can download additional components and adware to the infected computer. The downloaded adware is Lop.com related.
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