Environment
- CBC Sensor: All versions
- CBC Console: All versions
- Microsoft Windows: All versions
Symptoms
- Common Windows tools (notepad.exe, textpad.exe, excel.exe) silently fail to save work to a network file share.
- If the user tries to "save" twice, the second attempt works.
- If the CBC sensor is placed into Bypass mode, the problem disappears.
Cause
- The Windows computer is also running Trend Micro sensor.
- This is Trend Micro defect where Trend added the following to the Data Protection Policy (DLP)
File: C:\Windows\System32\dgagent\dsa.pro
Added Line: smb_disable_get_long_path_name=true
Trend Agent: ApexOne (SaaS)
Trend Internal tracking number: Trend Case:05427594
Resolution
Trend Micro has supplied a fix, so contact their Support directly.
