A targeted phishing attack using SLK attachments is underway against twenty-seven companies, with some of them being well-known brands such as Columbia Sportswear, J.C. Penny, Glad, and Hasbro. The threat actor will impersonate one of the company’s vendors or clients to perform a business transaction. MalwareHunterTeam told BleepingComputer that the payload was the NetSupport Manager RAT. This site is not longer alive, but the payload of the attack has been confirmed as NetSupportManager RAT.
Source: https://www.bleepingcomputer.com/news/security/targeted-phishing-attack-aims-for-well-known-corporate-brands/

