AOL history
application/octet-stream
Magic Bytes
Offset: 0
D4 C3 B2 A1
The AOL history file is a proprietary data format created by America Online for archiving user activity and session logs. This legacy format was primarily utilized by early versions of the AOL desktop client to store local records of web browsing history and automated software updates. While considered obsolete and posing minimal security risks today, these files may contain plain-text records of personal usage data from historical internet sessions.
Validation Code
How to validate .aut files in Python
Python
def is_aut(file_path: str) -> bool:
"""Check if file is a valid AUT by magic bytes."""
signature = bytes([0xD4, 0xC3, 0xB2, 0xA1])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .aut files in Node.js
Node.js
function isAUT(buffer: Buffer): boolean {
const signature = Buffer.from([0xD4, 0xC3, 0xB2, 0xA1]);
return buffer.subarray(0, 4).equals(signature);
}
Go
func IsAUT(data []byte) bool {
signature := []byte{0xD4, 0xC3, 0xB2, 0xA1}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
GET
/api/v1/aut
curl https://filesignature.org/api/v1/aut