C1240 K9w7 Tar 124 25d Ja2 Tar Hit __link__ Site
The software image you're asking about, C1240 K9w7 Tar 124 25d Ja2 Autonomous Cisco IOS software (v12.4(25d)JA2) specifically designed for the Cisco Aironet 1240 series access point
Some intrusion detection systems (Snort, Suricata) use custom rule signatures resembling this: C1240 K9w7 Tar 124 25d Ja2 Tar Hit