MS Secuirty essentials fails to protect agianst trojan

Whewn I was having to rebuild m pc I was advised by several members that MS security Essentials was all that I needed as effective antivirus protection. I have recently come back form holiday to discover a number of my online accounts have been hacked e.g. ebay,paypal. I immediately ran a full scan with MSSE and it found nothing of interest. Having changed all my passwords I found I was still being hacked so downloaded spybot which told me a had a trojan win32.pavelo. I removed this and ran malwalrebytes as well which said I had a trojan rundll32 in some registry key. I also removed this.

My question is whethee MSSE is really good enough as firstly didnt prevent the infction and secondly didn't find it on a full scan? Or is it that MSSe isn't designed to detect this kind of think and someother defence is required?

Thanks for any advice

Mike

MSSE will not protect against the newer strains of the Fake Alert Viruses and neither will Malwarebytes find them. I used to think that MSSE was enough for my system but after seeing my clients spend thousands of dollars on removal I have to say that the only anti virus system that I trust is Norton.

According to Microsoft:

Microsoft Security Essentials ... guards against viruses, spyware, and other malicious software.

Virus, Spyware & Malware Protection | Microsoft Security Essentials

Digging a little deeper at the Microsoft Malware Protection Center, MSE does provide protection against trojans but not necessarily all of them (especially the newest malware that may be a few hours old.) No anti-malware product is 100% effective 100% of the time or we'd all be using it.

Microsoft Malware Protection Center

You stated, "I have recently come back form holiday to discover a number of my online accounts have been hacked e.g. ebay,paypal." Was your machine left on and were you logged in to your various accounts thus leaving yourself exposed to hackers? Other than having MSE installed, what other measures did you take before you left on holiday to secure your machine? Did other people have access to your computer?

my pc was left on as I run some daily batch files to collect data. No I wasn't logged into an yo f the websites. My pc is on a wired LAN and my woreless is both locked to a list of MAC addresses and has password security. Prety sure I picked up the trojan going to a dodgy website when looking for some software. i apprecaite nothing is 100% proof, but just wondered if MSSE was designed to pick this stuff up and I was unlucky. Woudl I have bene any better protected if I had install Kapersky for which I have a licence ?

I am now running spybot as a background application, but not sure if that is an imporement?

Mike