The Harimau Watchlist
To search for IP, use the following: http://watchlist.security.org.my/index.php/watchlist/show/ip/the-ip-address
Example:
http://watchlist.security.org.my/index.php/watchlist/show/ip/192.168.0.100
OR
http://watchlist.security.org.my/watchlist/show?ip=192.168.0.100
This will match the IP if it exists, or match the netblock if it falls within the netblock.
This list is updated daily.
Search IP 
# ip/netblock, source, name, updated_at No records found
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