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Ransomware Research
Blackout Ransomware
Blackout is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on July 1, 2017, this ransomware has been actively targeting systems worldwide.
Quick Facts
- Ransomware Family
- Blackout
- First Seen
- July 1, 2017
How Blackout Ransomware Works
Targeted Files
Encodes filenames with base64 -> ida_allins.pyc -> aWRhX2FsbGlucy5weWM= https://app.any.run/tasks/429a046c-1168-4f5f-8edc-74d5fcfdbc35/
Ransom Note and Payment Demands
After encrypting files, Blackout displays ransom notes demanding payment for file recovery:
/^README_[0-9]{7}_[0-9]{5}\.txt$/
Ransom message:
notes/README_1183339_23654.txt
/^README_[0-9]{7}\.txt$/
Ransom message:
notes/README_4612110.txt
Note locations:
EveryFolder
Technical Indicators
Associated Executable Files
The following executable files are associated with Blackout ransomware:
iudorki.exe
verytu.exe
b4ad3e62644c344291e08a53a576e6dd.
program.exe
pkadentiri.exe
1534602634-w4ebp-bbf.pe32
OFTBRWCI.EXE
Report_MN180634257.docx
report_6054172398.docx
UID6817439520.docx
UID9061784523.docx
Report_MN6153420798.docx
report_8704359621.docx
xaqipaxowq.exe
pu.com
6.exe
eksadiwjgkew.exe
US-2020-03-03-16-18-40-0C03624B-9417807A-3C69D917-C6C250EF-C4987959.com
us-2020-03-03-16-18-40-0c03624b-9417807a-3c69d917-c6c250ef-c4987959.com
rozibert.exe
Elastio Can Help You
Don't let Blackout ransomware take over your data
Elastio provides advanced ransomware protection and recovery solutions to keep your organization safe.
About This Analysis
This Blackout 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 Blackout.
Last updated: July 30, 2025