Security News > 2021 > October > FBI: Ranzy Locker ransomware hit at least 30 US companies this year
The FBI said on Monday that Ranzy Locker ransomware operators had compromised at least 30 US companies this year from various industry sectors.
"Unknown cyber criminals using Ranzy Locker ransomware had compromised more than 30 US businesses as of July 2021," the FBI said in a TLP: WHITE flash alert.
Most Ranzy Locker victims who reported attacks told the FBI that the operators breached their networks by brute-forcing Remote Desktop Protocol credentials.
Once inside a victim's network, Ranzy Locker operators will also steal unencrypted documents before encrypting systems on their victims' corporate networks, a tactic used by most other ransomware gangs.
The cybercrime group fixed the bugs and released a new version of their ransomware strain under the Ranzy Locker name.
The FBI also provides technical details regarding tactics used in Ranzy Locker attacks, recommended mitigations, as well as indicators of compromise and YARA rules that can be used to detect and defend against such attempts.