fixed a bug when checking malformed BTC addresses
fixed a bug when checking malformed BTC addresses

VirusTotal/misp-modules,MISP/misp-modules,MISP/misp-modules,amuehlem/misp-modules,MISP/misp-modules,VirusTotal/misp-modules,VirusTotal/misp-modules,amuehlem/misp-modules,amuehlem/misp-modules