Add to ORKGpeer reviewedTo achieve its goals, ransomware needs to employ strong encryption, which in turn requires access to high-grade encryption keys. Over the evolution of ransomware, various techniques have been observed to accomplish the latter. Understanding the advantages and disadvantages of each method is essential to develop robust defense strategies. In this paper we explain the techniques used by ransomware to derive encryption keys and analyze the security of each approach. We argue that recovery of data might be possible if the ransomware cannot access high entropy randomness sources. As an evidence to support our theoretical results, we provide a decryptor program for a previously undefeated ransomware
Ransomware is a type of malware that locks out its victim’s access to their device or data – typical...
Ransomware have become a real threat to the use of technology. Unlike other forms of malware that co...
Ransomware has been established as one of the largest current threats to organisations, small busine...
Cryptographic ransomware encrypts files on a computer system, thereby blocks access to victim’s data...
In the past few years, activity of ransomware increased. As new variants and families of ransomware ...
peer reviewedTo be effective, ransomware has to implement strong encryption, and strong encryption i...
peer reviewedSince the appearance of ransomware in the cyber crime scene, researchers and anti-malwa...
peer reviewedAlthough conceptually not new, ransomware recently regained attraction in the cybersecu...
Ransomware has been proven to constitute a severe threat to the world's digital assets. Resources or...
Ransomware continues to grow in both scale, cost, complexity and impact since its initial discovery ...
We are assisting at an evolution in the ecosystem of cryptoware - the malware that encrypts files an...
The ransomware threat has loomed over our digital life since 1989. Criminals use this type of cyber ...
Ransomware is a type of malware that locks out its victim's access to their devices or data – typica...
Ransomware is similar to cyclone that creates data instability. The securely holded user data will b...
Ransomware is a type of malware that locks out its victim’s access to their device or data – typical...
Ransomware have become a real threat to the use of technology. Unlike other forms of malware that co...
Ransomware has been established as one of the largest current threats to organisations, small busine...
Cryptographic ransomware encrypts files on a computer system, thereby blocks access to victim’s data...
In the past few years, activity of ransomware increased. As new variants and families of ransomware ...
peer reviewedTo be effective, ransomware has to implement strong encryption, and strong encryption i...
peer reviewedSince the appearance of ransomware in the cyber crime scene, researchers and anti-malwa...
peer reviewedAlthough conceptually not new, ransomware recently regained attraction in the cybersecu...
Ransomware has been proven to constitute a severe threat to the world's digital assets. Resources or...
Ransomware continues to grow in both scale, cost, complexity and impact since its initial discovery ...
We are assisting at an evolution in the ecosystem of cryptoware - the malware that encrypts files an...
The ransomware threat has loomed over our digital life since 1989. Criminals use this type of cyber ...
Ransomware is a type of malware that locks out its victim's access to their devices or data – typica...
Ransomware is similar to cyclone that creates data instability. The securely holded user data will b...
Ransomware is a type of malware that locks out its victim’s access to their device or data – typical...
Ransomware have become a real threat to the use of technology. Unlike other forms of malware that co...
Ransomware has been established as one of the largest current threats to organisations, small busine...