ASNumberToNetblocks Robtex
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ASNumberToNetblocks_Robtex
This transform expands a ASNumberEntity to one or more NetblockEntity. This transform is very useful in the infrastructure footprinting of an organisation. Let us assume that Org. X owns a couple of netblocks, but only has a single DNSNameEntity that points to a single NetblockEntity - the other netblocks have no DNS information (e.g. no forward DNS pointing to it, or reverse DNS entries in the block). Using the NetblockToASNumber transform we can find the ASNumberEntity of the netblock. Once we have the AS number we can expand it to all the other netblocks that Org. X have.
Typical uses
DomainEntity via transform DomainToMXrecord or DomainToDNSName_ZT or DomainToDNSName_Brute to
DNSNameEntity via transform DNSNameToIPAddress_DNS to
IPAddressEntity via transform IPAddressToNetblock_SS to
NetblockEntity via transform NetblockToAS_SS to
ASNumberEntity via transform ASNumberToNetlocks_Robtex to