Ransomware Research

PolskiRansom Ransomware

PolskiRansom is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on August 1, 2017, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Polski, Gadu-Gadu, AESxWin.

Quick Facts

Ransomware Family
PolskiRansom
First Seen
August 1, 2017
Known Aliases
PolskiGadu-GaduAESxWin

How PolskiRansom Ransomware Works

File Encryption Patterns

PolskiRansom modifies encrypted files using specific patterns to mark them as encrypted:

File extensions added after encryption:

..aes..ZABLOKOWANE

Ransom Note and Payment Demands

After encrypting files, PolskiRansom displays ransom notes demanding payment for file recovery:

file### - ODZYSKAJ SWOJE DANE - ###.TXT

Ransom message:

notes/### - ODZYSKAJ SWOJE DANE - ###.TXT

Note locations:

EveryFolder
file#$# JAK-ODZYSKAC-PLIIKI.txt

Ransom message:

notes/#$# JAK-ODZYSKAC-PLIIKI.txt

Note locations:

EveryFolder
file!!! - - ODZYSKAJ-PLIKI - - !!!.htm

Technical Indicators

Associated Executable Files

The following executable files are associated with PolskiRansom ransomware:

  • AESxWin.exe
  • s500.exe

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About This Analysis

This PolskiRansom 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 PolskiRansom.

Last updated: October 30, 2025

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