This attack could pose a serious security threat. You should take immediate action to stop any damage or prevent further damage from happening.
This signature detects attempts to exploit a buffer overflow vulnerability in Aladdin Knowledge System which could result in remote code execution.
A vulnerability exists in Aladdin Knowledge System's ActiveX component. Supplying a long string of data to the component's ChooseFilePath() function causes a buffer overflow which may be used to execute remote arbitrary code.