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README.md

PCInfo Stealer

Unidentified PC Username / PC Name stealer observed inside @BRADMAX aggregator packs alongside Remus, Aetheris, Snake, and Minimal logs. The System_Info.txt uses two triple-equals section headers (=== SYSTEM INFORMATION ===) and four distinctive PC ... field keys.

Variants observed: 2 Top attribution confidence: unknown

Variants

cystack_47382a1a

Attribution confidence: unknown

Field keys: CPU, Country, HWID, IP, MAC, PC Name, PC Username, RAM, Resolution

Filenames: System_Info.txt

Sample (sanitized):

=== SYSTEM INFORMATION ===

PC Username: Mayss
PC Name: DESKTOP-E8C0A33
HWID: <redacted>
MAC: <redacted>
Resolution: 1920x1080
RAM: 15.96 GB
CPU: Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz

=== NETWORK INFO ===

IP: <redacted>
[... truncated; full sample at ``sample.txt`` (approx. 2 more lines) ...]

cystack_b27f73d9

Attribution confidence: unknown

Field keys: CPU, HWID, IP, MAC, PC Name, PC Username, RAM, Resolution

Filenames: System_Info.txt

Sample (sanitized):

=== SYSTEM INFORMATION ===

PC Username: Mayss
PC Name: DESKTOP-E8C0A33
HWID: <redacted>
MAC: <redacted>
Resolution: 1920x1080
RAM: 15.96 GB
CPU: Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz

=== NETWORK INFO ===

IP: <redacted>

Detection

Field keys prefixed with PC (PC Username:, PC Name:, PC Owner:, PC Domain:) together with the === SYSTEM INFORMATION === section header are the cleanest signature.

MITRE ATT&CK