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- ##################################
- # TRW sin reduccion #
- # Para Silk's Data Set #
- ################################
-
-
-
- from silk import *
- startDate = "2009/04/20"
- endDate = "2009/04/22"
- p = 2
-
- def Analisis():
- counter = 0 # borrar luego
- sampleHash={} #hash para contener los dip con el numero de conecciones y failed coneccciones
- flow_counter = 0
- for filename in FGlob(classname="all", type="all", start_date=startDate, end_date=endDate, site_config_file="/data/silk.conf", data_rootdir="/data"):
- for rec in silkfile_open(filename, READ):#reading the flow file
- flow_counter += 1
- if (':' in str(rec.sip)):
- continue
- else:
- connection = [0] * 2 #Lista para contener los valores de conecciones failed y conecciones buenas
- sip = str(rec.sip) #Devuelve el ip en notacion punto-decimal
- flags = str(rec.tcpflags)
- #print sip, flags
- #counter +=1
- if 'A' in flags: ####arreglar
- connection[1]=1 #good conections
- else:
- connection [0] =1 #failed conections
- if sip in sampleHash:
- sampleHash[sip][0]+= connection[0]
- sampleHash[sip][1]+= connection[1]
- else:
- sampleHash[sip] = [connection[0], connection[1]]
- #print sampleHash
- #print flow_counter
- return sampleHash
-
- sip_connections_list = Analisis()
- #print sip_connections_list
- sipList = []
- for sip in sip_connections_list:
- if (sip_connections_list[sip][1] != 0) and ((sip_connections_list[sip][0] / sip_connections_list[sip][1]) < 1) : #si la cantidad de succesful
- #b #g #connections es mas que failed connections
- #not scanner, ignore
- continue
- elif (sip_connections_list[sip][1] != 0) and ((sip_connections_list[sip][0] / sip_connections_list[sip][1]) < p): #mas failed que succesful, pero no llega al threshold
- #not scanner, ignore
- continue #se debe tener en cuenta que es suspicious pero no taaanto
- elif (sip_connections_list[sip][1] == 0 and sip_connections_list[sip][0] > 10): #el ratio de failed a succesful llega al threshold pautado
- #scanner, oh oh
- sipList.append(sip)
- else:
- #scanner, oh oh
- sipList.append(sip)
-
- #print len(sipList)
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