Spam messages are often used by cybercriminals to deliver malware to the potential victim, either by attaching the malicious piece or by providing a link to its download, and Dofoil, a malware downloader tool, seems to have been a very popular choice in September in fraudulent emails.
After compiling telemetry data into a more human comprehensible form, researchers at Kaspersky determined that in September less spam was sent out compared to the previous month. However, don’t hold your breath because the difference was of just 0.7%.
Malware droppers and phishing reign over other threats
Some of the junk email contained malicious items, and in 3.08% of the cases, the Dofoil dropper was present; the threat is used for hauling onto the compromised system and executing other, more complex pieces of malware.