With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciscoFlashFileDate
cisco Flash File Date
1.3.6.1.4.1.9.9.10.1.1.4.2.1.1.7
The time at which this file was created.
Back to CISCO-FLASH-MIB MIB page.
IPHost Network monitor allows you to monitor ciscoFlashFileDate on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.