I have seen this IP hammering my board, opening hundreds of connections:

38.98.19.0/24

anyone know which bot this is? a whois on that ip doesn't reveal anything:

OrgName: Performance Systems International Inc.
OrgID: PSI
Address: 1015 31st St NW
City: Washington
StateProv: DC
PostalCode: 20007
Country: US

NetRange: 38.0.0.0 - 38.255.255.255
CIDR: 38.0.0.0/8
NetName: PSINETA
NetHandle: NET-38-0-0-0-1
Parent:
NetType: Direct Allocation
NameServer: NS.PSI.NET
NameServer: NS2.PSI.NET
Comment: Reassignment information for this block can be found at
Comment: rwhois.cogentco.com 4321
RegDate: 1991-04-16
Updated: 2005-10-05

RTechHandle: PSI-NISC-ARIN
RTechName: IP Allocation
RTechPhone: +1-877-875-4311
RTechEmail: *******@cogentco.com