AVCheck and related crypting services helped cybercriminals make malware difficult to detect and confirm that malware could slip through various antivirus tools undetected, officials said.
Sen. Catherine Cortez Masto, D-Nev., speaks during a hearing with the Senate Judiciary subcommittee on Capitol Hill on June 12, 2024 in Washington, D.C. (Photo by Anna Moneymaker/Getty Images)
Then-acting National Cyber Director Kemba Walden, right, with Megan Stifel, chief strategy officer for the Institute for Security and Technology, at event on ransomware in Washington in May 2023. (Photo courtesy of the Institute for Security and Technology)