Sorry to bother, but (extirped from avira's forum:
http://forum.avira.com/wbb/index.php?page=Thread&postID=1020184&highlight=malwarebytes%27s+resident+protection#post1020184)
COMPATIBLE WITH AVIRA:
ThreatFire (PC Tools)
Malwarebytes Anti-Malware (Malwarebytes) [on-demand]
Sandboxie (Sandboxie)
SUPERAntiSpyware (SUPERAntiSpyware) [on-demand]
SpywareBlaster (Javacool Software)
WinPatrol (BillP Studios)
*The listed softwares are recognized as compatible due to the cases already reported to this forum. This list doesn’t mean that only these softwares are compatible with Avira. Also, doesn’t mean that conflicts will not happen. If this happens, please immediately report to the forum. It's important to highlight that "on-demand", means when needed or required, ie, without the real-time protection and used to perform an additional scan according to the voluntary choice of the user.
Avira does not recommend to install any other antivirus software along with any product of Avira, regardless of developer. The reason for this is that if both products have their automatic (real-time) protection switched on, then those products which don't encrypt the virus strings within them, could cause other antivirus products to generate "false positives". It can also lead to a clash, as both products fight for access to files which are opened again in their resident / automatic protection. In general terms, the two antivirus softwares may conflict and cause:
False Positives: When the antivirus software tells you that your PC has a virus when it actually doesn't.
System Performance Problems: Your system may lock up due to both products attempting to access the same file at the same time.
The listed softwares are recognized as low or high incidence of incompatibilities due to cases already reported to this forum.
This list will be updated from time to time.
It's highly recommended that you create another layer of protection beyond Avira, assuming that you just have Avira Personal or Avira Premium installed. Then, you must have a ‘good firewall’ and should have a second layer of protection. This second layer could be composed with Malwarebytes' Anti-Malware, SUPERAntiSpyware or any other on-demand antimalware software and a browser with good extensions for a safe browsing. This ‘good firewall’ is your personal choice. Here is a list of free firewalls, that you could use:
Comodo Personal Firewall - Standalone Installation (
http://personalfirewall.comodo.com)
Online Armor Free (
http://www.online-armor.com/)
Zone Alarm Free Firewall 2010 (
http://www.zonealarm.com/security/en-us/…ee-firewall.htm)
PC Tools Firewall Plus (
http://www.pctools.com/firewall/)
Although there have been no reports of incompatibilities among the real-time protection of MBAM (Malwarebytes' Anti-Malware) and Avira, the real-time protection of MBAM is not an official recommendation from Avira. Also, please note that you can use any other firewall which is not mentioned in this list. "
Also you can well have the malware also included in the two softwares signature.