Ransomware Research
CryptoShield 1.0 Ransomware
CryptoShield 1.0 is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on February 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- CryptoShield 1.0
- First Seen
- February 1, 2017
How CryptoShield 1.0 Ransomware Works
Targeted Files
Encrypts filenames -> magic.mgc -> ZNTVP.ZTP.CRYPTOSHIELD Biblio.mdb -> OVOYVB.ZQO.CRYPTOSHIELD
File Encryption Patterns
CryptoShield 1.0 modifies encrypted files using specific patterns to mark them as encrypted:
File extensions added after encryption:
..CRYPTOSHIELDRansom Note and Payment Demands
After encrypting files, CryptoShield 1.0 displays ransom notes demanding payment for file recovery:
# RESTORING FILES #.TXTRansom message:
notes/# RESTORING FILES #.TXT
Note locations:
EveryFolder# RESTORING FILES #.HTMLRansom message:
notes/# RESTORING FILES #.HTML
Note locations:
EveryFolderTechnical Indicators
Associated Executable Files
The following executable files are associated with CryptoShield 1.0 ransomware:
winlogon.exeWindows Winlogcryptoshield.exeda98d21ebd555c4b_rada5971.tmp.exee71.exeCryptoShield.exetest1ScreenSmarts2b78c994f2daabfd_rad6411a.tmp.exeWindows Winlog SoftWarejquery.exeSmartScreen.exe邀请函(请只在虚拟机运行).execs01.exe
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About This Analysis
This CryptoShield 1.0 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 CryptoShield 1.0.
Last updated: July 30, 2025