Hashes

Check Hash Reputation

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Talos File Reputation Lookup || Cisco Talos Intelligence Group - Comprehensive Threat Intelligencetalosintelligence.com

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Calculating Hash

Remnux of Kali

user@machine$ md5sum wannacry 
84c82835a5d21bbcf75a61706d8ab549  wannacry
user@machine$

Windows CMD

certutil -hashfile bl0gger.exe SHA256

Windows Powershell

Get-FileHash .\OpenVPN_2.5.1_I601_amd64.msi -Algorithm MD5

Hashtab

HashTab by Implbits is a lightweight utility focused on making file hash calculation and verification more accessible within the operating system’s file management workflow. Instead of relying on separate tools, HashTab integrates directly into the file properties view, allowing users to inspect hash values alongside standard file details.

HashTab - Downloadhashtab.en.softonic.com

Fuzzy Hashing

Fuzzy hashing is also a strong weapon against the attacker's tools. Fuzzy hashing helps you to perform similarity analysis - match two files with minor differences based on the fuzzy hash values. One of the examples of fuzzy hashing is the usage of SSDeep; on the SSDeep official website, you can also find the complete explanation for fuzzy hashing.

Example of SSDeep from VirusTotal: