Ransomware Research
Defray777 Ransomware
Defray777 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on November 1, 2018, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Defray 2018 -2020, Defray.
Quick Facts
- Ransomware Family
- Defray777
- First Seen
- November 1, 2018
- Known Aliases
- Defray 2018 -2020Defray
How Defray777 Ransomware Works
Targeted Files
NOSAMPLE https://www.bleepingcomputer.com/forums/t/691855/ransomware-custom-extension-name/?p=4722567 https://www.bleepingcomputer.com/forums/t/713214/ransomware-infection/
File Encryption Patterns
Defray777 modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..c3nt3r..waynedd1911..c0mp4ny_n4m3./\.\w+777$/Ransom Note and Payment Demands
After encrypting files, Defray777 displays ransom notes demanding payment for file recovery:
!!!_Read_Me_How_To_DeCrypt_Files_!!!.tXtRansom message:
notes/!!!_Read_Me_How_To_DeCrypt_Files_!!!.tXt
/^!\w+_ReadMeHowToDeCryptFiles!\.txt$/Ransom message:
notes/!JohnPhilips_ReadMeHowToDeCryptFiles!.txt
/^###_\w+_Read_Me_Now_###\.txt$/Ransom message:
notes/###_company_name_Read_Me_Now_###.txt
!_WAYNEDD-README.txtRansom message:
notes/!_WAYNEDD-README.txt
!_README_!.txtRansom message:
notes/!_README_!.txt
/^\w+_READ_ME\.txt$/Ransom message:
notes/_xxx_READ_ME.txt
#-CENTER-Read-It-Urgent-#.txtRansom message:
notes/#-CENTER-Read-It-Urgent-#.txt
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About This Analysis
This Defray777 ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like Defray777.
Last updated: July 30, 2025