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An Overall Description about AFP Virus on Android Phone/Tablet:

The malware threatened to delete the private key if a payment of Bitcoin or a pre-paid cash voucher was not made within 3 days of the infection. Due to the extremely large key size it uses, analysts and those affected by the Trojan considered CryptoLocker extremely difficult to repair. Department of Justice on 2 June The Department of Justice also publicly issued an indictment against the Russian hacker Evgeniy Bogachev for his alleged involvement in the botnet.

In September , a wave of ransomware Trojans surfaced that first targeted users in Australia , under the names CryptoWall and CryptoLocker which is, as with CryptoLocker 2. Symantec determined that these new variants, which it identified as CryptoLocker. F , were again, unrelated to the original CryptoLocker due to differences in their operation. Another Trojan in this wave, TorrentLocker , initially contained a design flaw comparable to CryptoDefense; it used the same keystream for every infected computer, making the encryption trivial to overcome.

However, this flaw was later fixed.

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Another major ransomware Trojan targeting Windows, CryptoWall, first appeared in One strain of CryptoWall was distributed as part of a malvertising campaign on the Zedo ad network in late-September that targeted several major websites; the ads redirected to rogue websites that used browser plugin exploits to download the payload. A Barracuda Networks researcher also noted that the payload was signed with a digital signature in an effort to appear trustworthy to security software. To further evade detection, the malware creates new instances of explorer.

When encrypting files, the malware also deletes volume shadow copies and installs spyware that steals passwords and Bitcoin wallets. The most recent version, CryptoWall 4. Fusob is one of the major mobile ransomware families. Between April and March , about 56 percent of accounted mobile ransomware was Fusob.


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Like a typical mobile ransomware, it employs scare tactics to extort people to pay a ransom. Rather surprisingly, Fusob suggests using iTunes gift cards for payment. In order to infect devices, Fusob masquerades as a pornographic video player. Thus, victims, thinking it is harmless, unwittingly download Fusob. When Fusob is installed, it first checks the language used in the device. If it uses Russian or certain Eastern European languages, Fusob does nothing. Otherwise, it proceeds on to lock the device and demand ransom.

Fusob has lots in common with Small, which is another major family of mobile ransomware. In May , the WannaCry ransomware attack spread through the Internet, using an exploit vector named EternalBlue , which was allegedly leaked from the U. National Security Agency.

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The ransomware attack, unprecedented in scale, [91] infected more than , computers in over countries, [92] using 20 different languages to demand money from users using Bitcoin cryptocurrency. Petya was first discovered in March ; unlike other forms of encrypting ransomware, the malware aimed to infect the master boot record , installing a payload which encrypts the file tables of the NTFS file system the next time that the infected system boots, blocking the system from booting into Windows at all until the ransom is paid.

Check Point reported that despite what it believed to be an innovative evolution in ransomware design, it had resulted in relatively-fewer infections than other ransomware active around the same time frame. On 27 June , a heavily modified version of Petya was used for a global cyberattack primarily targeting Ukraine but affecting many countries [99].

This version had been modified to propagate using the same EternalBlue exploit that was used by WannaCry. Due to another design change, it is also unable to actually unlock a system after the ransom is paid; this led to security analysts speculating that the attack was not meant to generate illicit profit, but to simply cause disruption. On 24 October , some users in Russia and Ukraine reported a new ransomware attack, named "Bad Rabbit", which follows a similar pattern to WannaCry and Petya by encrypting the user's file tables and then demands a Bitcoin payment to decrypt them.

Security experts found that the ransomware did not use the EternalBlue exploit to spread, and a simple method to vaccinate an unaffected machine running older Windows versions was found by 24 October In , a new strain of ransomware emerged that was targeting JBoss servers.

The virus has been behind attacks on government and healthcare targets, with notable hacks occurring against the town of Farmington, New Mexico , the Colorado Department of Transportation , Davidson County, North Carolina , and most recently, a major breach of security on the infrastructure of Atlanta. Syskey is a utility that was included with Windows NT -based operating systems to encrypt the user account database , optionally with a password. The tool has sometimes been effectively used as ransomware during technical support scams —where a caller with remote access to the computer may use the tool to lock the user out of their computer with a password known only to them.

As with other forms of malware, security software antivirus software might not detect a ransomware payload, or, especially in the case of encrypting payloads, only after encryption is under way or complete, particularly if a new version unknown to the protective software is distributed. Security experts have suggested precautionary measures for dealing with ransomware. Using software or other security policies to block known payloads from launching will help to prevent infection, but will not protect against all attacks [24] [] Keeping "offline" backups of data stored in locations inaccessible from any potentially infected computer , such as external storage drives or devices that do not have any access to any network including the Internet , prevents them from being accessed by the ransomware.

Installing security updates issued by software vendors can mitigate the vulnerabilities leveraged by certain strains to propagate. A number of file systems keep snapshots of the data they hold, which can be used to recover the contents of files from a time prior to the ransomware attack in the event the ransomware doesn't disable it. There are a number of tools intended specifically to decrypt files locked by ransomware, although successful recovery may not be possible.

But, it only works when the cipher the attacker used was weak to begin with, being vulnerable to known-plaintext attack ; recovery of the key, if it is possible, may take several days. In addition, old copies of files may exist on the disk, which has been previously deleted. In some cases, these deleted versions may still be recoverable using software designed for that purpose. Ransomware malicious software has evolved since its beginnings when it was confined to one or two countries in Eastern Europe which then spread across the Atlantic to the United States and Canada.

They were first seen in Russia by year claiming to be a message from Microsoft. They also used to request a payment by sending an SMS message to a premium rate number.

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The next variant displayed pornographic image content and demanded payment for the removal of it. Not only end users are affected by these attacks. Corporations, private entities, government, and even hospitals are also affected. For example, in healthcare although was the year in which the largest ePHI data breaches occurred according to the ONC was the year that ransomware started to increase exponentially in this market.

According to the Internet Security Threat Report from Symantec Corp, ransomware affects not only IT systems but also patient care, clinical operations, and billing. Ransomware is growing rapidly across the internet users but also for the IoT environment [] which creates a challenging problem to the INFOSEC while increasing the attack surface area.


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They are evolving into more sophisticated attacks and, they are becoming more resistant; at the same time, they are also more accessible than ever. Today, for a cheap price, the attackers have access to ransomware as a service. The big problem is that millions of dollars are lost by some organizations and industries that have decided to pay, such as the Hollywood Presbyterian Medical Center and the MedStar Health.

The problem here is that by paying the ransom, they are funding the cybercrime.

According to Symantec ISTR report, for the first time since , in there was an observed decrease in ransomware activity with a drop of 20 percent. Before , consumers were the preferred victims, but in this changed dramatically, it moved to the enterprises. In this path accelerated with 81 percent infections which represented a 12 percent increase. Cyber awareness training is crucial to detecting attacks, whereas technology cannot protect against careless or foolish behavior. According to KnowBe4 Osterman report, there are number of approaches to security awareness training that are practiced by organizations and managed by security teams.

An effective and successful cyber awareness training program must be sponsored from the top of the organization with supporting policies and procedures which effectively outline ramifications of non-compliance, frequency of training and a process for acknowledgement of training. Other factors that are key to a successful Cyber Awareness Training program is to establish a baseline identifying the level of knowledge of the organization to establish where the users are in their knowledge prior to training and after.

Whichever approach an organization decides to implement, it is important that the organization has policies and procedures in place that provide training that is up to date, performed frequently and has the backing of the entire organization from the top down.

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Investment in technology to detect and stop these threats must be maintained, but along with that we need to remember and focus on our weakest link, which is the user. The publication of proof-of-concept attack code is common among academic researchers and vulnerability researchers. It teaches the nature of the threat, conveys the gravity of the issues, and enables countermeasures to be devised and put into place.

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Australian Federal Police (AFP) Virus

However, lawmakers with the support of law-enforcement bodies are contemplating making the creation of ransomware illegal. In the state of Maryland, the original draft of HB made it a felony to create ransomware, punishable by up to 10 years in prison. The source code to the cryptotrojan is still live on the Internet and is associated with a draft of Chapter 2. From Wikipedia, the free encyclopedia.

Type of malicious software that threatens to publish the victim's data or perpetually block access to it unless a ransom is paid. Main article: CryptoLocker. Main article: WannaCry ransomware attack. Main article: Petya malware.

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