Malware names of the last virus definition update (20111005-0)

Avast Free Antivirus / Premium Security
1

Hello!

Just wondering, what means the + in the front of the name of some definitions names created today?

The ones like:
+Allaple, +Amvo, +BredoPack, +ChanCrypt, +Crank, +Detnat, +DrWal, +DracuMiner, +Dracur, +FaDrop, +Fabot, +FakeDHL, +Falder, +Feebser, +Foxer, +FuCrypt, +Fuchiga, +Gamona, +Gaoprd, +Haxpa, +HerBHO, +Hilot, +HrupkaA, +Ilomo, +Jifas, +Kamso, +KdCrypt, +Kelihos, +Kolab, +Lolyda, +MalobA, +MalobAB, +MalobAC, +MalobAE, +MalobAH, +MalobAJ, +MalobAP, +MalobAR, +MalobAZ, +MalobBA, +MalobBH, +MalobC, +MalobDA, +MalobDB, +MalobDE, +MalobDP, +MalobF, +MalobL, +MalobM, +MalobN, +MalobP, +MalobR, +MalobS, +MalobU, +MalobV, +MalobW, +Mimicker, +Morphex, +NTkrnl, +Neredr, +Obfuscator, +PECrypt, +PushCallSub, +RenCrypt, +Renos, +RetAsJmp, +SMorph, +Secat, +Section, +Sectool, +Skimorph, +Soolo, +Wali, +Xbuk, +Xpa

What difference they have? Or none difference, just the name…?

Thanks for your time,

BrBrasil

2

Those are special detections that are used internally by the engine. You don’t have to worry about them.

3

Oh, Cool! Ok!

Thanks for the answer!

Bye!