Lockfile

LockFile is a type of malicious software, or malware, that has been linked to ransomware activity. This harmful program can infiltrate your system via suspicious downloads, emails, or websites and can steal personal information, disrupt operations, or hold your data for ransom. Analysis of the PlugX sample, which is associated with LockFile, suggests that it may be connected to Chinese threat group activity. Other samples such as HUI Loader, which loads the Cobalt Strike Beacon, have also been linked to LockFile. The links between LockFile, HUI Loader, and a specific sub-version of PlugX suggest that the threat group responsible for the ransomware activity connected to HUI Loader may have access to malware developed by Chinese government-sponsored groups. LockFile operates as a traditional ransomware scheme under the operation of BRONZE STARLIGHT, but has adopted a name-and-shame model for other ransomware operations. Notably, some types of ransomware, including LockFile, only partially encrypt a file, especially if it is very large. This method of intermittent encryption is used to evade detection. Furthermore, LockFile has been observed using the PetitPotam exploit to compromise Windows Domain Controllers, adding another layer of complexity to its operations. To combat this threat, Avast has released a decryptor tool specifically designed for Atom Silo and LockFile ransomware. Heimdal™ Security also offers an integrated cybersecurity suite featuring a Ransomware Encryption Protection module that is universally compatible with any antivirus solution. This module is 100% signature-free, ensuring superior detection and remediation of any type of ransomware, including recent ones like LockFile. Despite these countermeasures, the exact number and nature of LockFile victims remain unclear.