Cloud detection (such as WS.Repuration.1, Suspicious.Cloud.x, etc.) are used only directly after download or first access it. After that - restoring from Quarantine, or unpack it again - Norton is not recognize a threat in this file. What is the regognize algorithms? First - delete all, after - use as long as you want. Threats if they are recognized as bad - must be recognized as bad untill next update (engine, definitions, behav. or heur. engines, cloud information).
Although bad Cloud information - threat was able to start own procedures:
1) downloaded 1 MB file from the Internet
2) fully rewrited hosts file and write in it about 10 own entries (!not recognized by NPE!)
3) maked Task Manager disabled via the appropriate registry item (recognized by NPE, !but can't be fixed!)
4) maked Command Prompt disabled (!not recognized by NPE!)
5) other (not recognized by NPE)
Where SONAR was? Where it looked? So many malware actions from must-be-restricted-in-actions bad reputation file!
Previously I saw many malware that SONAR blocks at once. Here I saw no bahaviour monitoring in this case.
May be this sample uses slightly new model of infection tactics
How many (different tactics) and (actions of the same tactics) samples can I write to make product saw and protect against this? :)) Are there in company a specialists of different malware actions? You are analysing thousands malware samples everyday, you know how actions can be executed in Windows. So why you can't recognize suspicious actions or at least display to user this list of actions and processes that made them like Windows Defender (at least on WinXP does and better)?
Please! Improve your product! Sophisticated to end users? Make an option to turn off and on it (make off by default)
Lets start to fight agains malware together! Display user messages about system changes made and make at once suspicious sample auto-submissions!
Missed threats at sendspace and rapidshare.
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NIS 18.5.0.125 (fully updated)
WinXP Prof. SP3 32bit x86
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