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February 11, 2020

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කප්පම් ඉල්ලන දුරකතන වෛරසය

Double Locker is the latest addition to the list of ransomware threats which espouses a dual-locking approach. It not only encrypts the user data but also exploits the device by locking its accessibility. A renowned security research firm found this new Android ransomware ‘Double Locker' that is spreading through counterfeit applications. This two-stage malware not only encrypts user's data on Android device but is also able to change the security PIN code. Hence it is known as ‘Double Locker'. Double Locker attacks Android devices in two ways. Primarily, it encrypts all data with Advanced Encryption Standard (AES) mechanism and corrupts with .cyreye file extension, which makes it a perfect case of ransom demand. In addition, it stops device access by changing the pin code. According to the research, it is more advanced compared to other Android ransomware. It is the first ransomware which can take device control with admin rights breach. After that, the malware pla

Ransomware Attack

Ransomware is computer malware that installs covertly on a victim's device (e.g., computer, smartphone, wearable device) and that either mounts the cryptoviral extortion attack from cryptovirology that holds the victim's data hostage, or mounts a cryptovirology leakware attack that threatens to publish the victim's data, until a ransom is paid. Simple ransomware may lock the system in a way which is not difficult for a knowledgeable person to reverse, and display a message requesting payment to unlock it. More advanced malware encrypts the victim's files, making them inaccessible, and demands a ransom payment to decrypt them. The ransomware may also encrypt the computer's Master File Table (MFT) or the entire hard drive. Thus, ransomware is a denial-of-access attack that prevents computer users from accessing files since it is intractable to decrypt the files without the decryption key. Ransomware attacks are typically carried out using a Trojan that has a pay

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