FBI released the key decryption key for GandCrab Ransomware

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In the latest announcement, the US Federal Bureau of Investigation FBI has officially released decryption keys for blackmailing Gandcrab Ransomware versions 4, 5, 5.0.4, 5.1 and 5.2. Thus, by using these keys, any individual or organization can create and publish their own GandCrab decoder.

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Gandcrab Ransomware

GandCrab stopped working
The FBI key allows anyone to create a GandCrab decoder
The main decoding keys of GandCrab

GandCrab stopped working

After nearly a year and a half 'storming', June 1, 2019, the people behind GandCrab ransomware claimed that the malware stopped working and at the same time urged the malicious 'branches' of I stopped distributing this extortion code.

However, they have promptly collected over $ 2 billion from this malicious code. The huge amount of money is mainly collected through ransom payments of victims, of which GandCrab earns more than $ 2.5 million per week on average. More specifically, $ 150 million of them has been cashed and successfully "laundered" through investing in legitimate business projects.

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FBI released the key decryption key for GandCrab Ransomware Picture 1 GandCrab notices and the amount of money earned

2 weeks after GandCrab announced its shutdown, security companies NoMoreRansom and Bitdefender teamed up with Europol, the FBI, as well as many other law enforcement agencies to research and release a dedicated decoder. for user files encrypted by GandCrab versions 1, 4 and 5 to 5.2.

Although Bitdefender is not clear about how they have gained access to these keys, observers say it is more likely that the security organization has access to servers only. Commander and control (C2 server) of GandCrab to download the key.

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The FBI key allows anyone to create a GandCrab decoder

In the newly released "FBI Flash Alert" a few days ago, the three key decoding keys for malicious code from GandCrab were released to members of the FBI InfraGard program. Notices are issued by the FBI through InfraGard, categorized by the Traffic Light Protocol (the 'traffic signal' protocol, specifying how to share information). This notice is titled: "Master Decryption Keys for GandCrab, versions 4 through 5.2" (roughly translated: Main decoding keys for GandCrab, version 4 to 5.2), has been released as a TLP message: White, means that information can be publicly disclosed, without limitation.

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FBI released the key decryption key for GandCrab Ransomware Picture 2 New FBI announcement with TLP: White

In addition to accompanying key decoding keys, the FBI's notice also explains in detail how GandCrab RaaS and related statistics are, in particular, as follows:

"Beginning June 17, 2019, the FBI collaborated with law enforcement agencies from 8 European countries, as well as Europol and BitDefender, then released a decoding tool that could be applied. It can be used for all versions of ransomware GandCrab.You can find this decoding tool at www.nomoreransom.org, the collaborative efforts later helped identify additional key decoding keys for all new versions of GandCrab, introduced since July 2018. The FBI is releasing key keys to facilitate the development of additional decoding tools in the future.

Basically, GandCrab works using the ransomware-as-a-service (RaaS) model, earning profits by selling malware distribution rights to branches spreading malicious code globally to exchange take about 40% of the ransom. GandCrab was first discovered in January 2018 when the malware successfully infected in the system of several Korean businesses. Since then, GandCrab dispersal campaigns have been deployed very vigorously, helping this extortion code to rapidly expand its reach and presence globally, affecting at least eight areas Important infrastructure in the United States. Shortly thereafter, GandCrab quickly rose to become the world's most dangerous blackmail-based extortion software, and is believed to hold 50% of the global ransomware market share in the middle of 2018. According to estimates by experts, GandCrab infects more than 500,000 victims worldwide, causing damage in excess of $ 300 million. "

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The main decoding keys of GandCrab

Below are the key decoding keys for versions GandCrab 4, 5, 5.0.4, 5.1 and 5.2.

To use the decryption key properly, you will need to familiarize yourself as well as learn the encryption methods used by different versions of GandCrab.

Key decodes for copies of GandCrab 4 and 5

 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

Key decoding for version of GandCrab 5.0.4 - 5.1

 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

Key decoding for version of GandCrab 5.2

 BwIAAACkAABSU0EyAAgAAAEAAQBtwvOCqX7rw/P9P/NqSFQEe621TAAfjoG2UUw6dgLDRWo66kSsANjkrb5Cxdy2zW9f3+vu0TusoqUfwd6My8wJ0IEd0PpJ0V1IsHE504+zpG3oL8gMS7TPr3QvTMLMdMTKH/8f2LDCjfDfak/Zzz/tzm80KJ2eOQ1jTx+0Bn+j+Y0L0KzoiVJ2KpFbC5Gy2bkjYPLqkZ6Tx4NN7y6ekWkcLTMtyTgIqIchiJB4A+7xEtIkl80x5SyE4HTsyG/H9jIKQuYnUetZREYIagscrJtfYLjeiZCzwdlqb0KjA7Vi9BY5jci5bEjrGKBOeVBeL1atKOqFldgB7Wxs4SkGw4Lb0xCs0WVMJJBWFJYlMNqSbATwmKdrYhpm4IPAISa3EhfKQjHB9vNKRyPm+9zCmw/Nz1gDBlYxGeR9Gwvd/ZnzVa7OKSaoOdTOuPEQkYTFPJ2L5s2Qv7UyK3OzS5Va3er+20DB2NWm/FeVzXLwdhwEI8rM+rqlummMBWUJwPN1QP2/14ZRjaKFZFPByYhDVlSVDRSReXZ0xhjz9ZgWGNJCA94N8lVbUbZ2NHTr7xGY9movIl1+zdfFXvTv+Km72m+xkHSHe/IRr2DrLMRGtTDjwrtaFwdNgDNhNRABTlsTc1sSn3pE7owK/8HMvQG8K3YffEWNG9IeDoDSFCgiWZHk3bczBZAB9QqTI3zF3sx/lSQ0rMAKBsSVDW1mJs6VN5hc5oS78LQNKPmiZGqcD2ZtQOvNWQvZ/bX5RCCco3x7kg792SAsX0TI7IS+YunreAB7xkpbs0fhAWJNzNKRkRu2IWOtL7ePedmGoiH4jrrjkh26rMCvfbM/G/w4J4dUhSXlU2EdnoT6QU0OWlSnCww/lbvkylpdd6j5kYH6TnVEzYbghOwcehcjtAoWECH9r4vF9prRVfYXypu/qbIljpCNmRsmraYDkX+0udTR9ILTKrZri4xVeDWbT0BpllQzChCd6KUrv526JZuYemlVxS/6+/mOLUP5RI6nUWi/oSlS8mQgwYx0a2Kfk1HGMIjrGO2EQkty7LiFMf9E1ynqLaD4Uz+xzahY3UwPP9DdqkMxZ3eFebdU+uxUd0wGqXFZRCXfWgEIJe5z43TXY3fSPXQN5K4YSU+5QRQ7pH+MXpk8gw/dKt4v7+eyMGqxlLtuid2uovYbQu+8lgda2ff2j0RRLu0b+VuoWkweUSxoNIHaXhcnsLs432eA2w8txYFI1+uUKK1ecv1bolkvkai2ip53KVmW97g5+fZTXgNEPR7vdLeViYulD4RZINvZmQLgZQvPbS+cwMJKgE7YnRQQTr9BUb+139PQY5w6PoRkpTUdoHSdfe9qaiTs3vy3uCHt4mR5ODZ5z25b2223wHVVbhdTXzTZj1GBm8b0q+PpSCpu/l2Iffdv40pb7ufk2ILGftvPjZVbwBNjAPVXLPDybCxtA2xpk4gby/DN9cBOBuEQMMiSnljQ7sf6QBaSJa/vgvy77VyiM8kJxKBjXOrUlGz+4Li8eUdmYT6W8Dcutj5JmMA=

Say goodbye to GandCrab!

Samuel Daniel

Update 17 July 2019

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