Numbreaker
Cobalt Strike 4.x Aggressor Script to assist the Red Team Operator with number, datetime, and data conversions/decoding.
Install / Use
/learn @SavSanta/NumbreakerREADME
numbreaker
Overview
A Cobalt Strike Aggressor Script to assist an operators in conversions of common numerical, alphanumerical, or similar data types into human readable data. Supports converting from:
- SAMAccount type values that are typically found listed for accounts in Active Directory.
- User Account Control values that are associated to an accounts in Active Directory.
- Common Microsoft timestamps. ie Active Directory (e.g. accountExpires, LastLogon, LastLogonTimestamp, and LastPwdSet) or Windows Filetime/Systemtime values.
- CIDR IP Range start and end calculation
- JSON Web Token (JWT) decode/display.
Usage
- Install the Aggressor Script into your Cobalt Strike Client.
- In a beacon window type
numbreaker - Enter in a value in the new pop-up window
- Select the type of conversion that is desired by clicking on the appropriate radial dial buttons.
Alternatively, once can install as a right-click pop-up in your Cobalt Strike default.cna. Reference the manual for more info.
Screenshots

SAM Account Type

MSAD/LDAP/NT Datetime

User Account Control

CIDR Range Calc

JWT Decoder
View on GitHub75/100
Security Score
Audited on Jan 10, 2026
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