Posts Tagged ‘spamhaus’

Romania is a country that many Internet security researchers and various law enforcement agencies equate with cybercrime and have probably had that mind for quite a while now.  Even some casual readers of spam news know about Romania’s bad reputation online. The good news is over the years more and more people directly involved cybercrime […]


According to  Spamhaus Top 10 Network offenders on its Spamhaus Block List Advisory, an ISP called AS3352 TELEFONICA-DATA-ESPANA has the most SBLs on Spamhaus list as of January 17th, 2010. Based on Spamhaus‘ research, this ISP is considered the current “World’s Worst Network.”  At time of this post, there are 95 SBLs belonging to Telefonica.es. […]


Since around August 2009 or so, French provider OVH.net (AS16276) has been the top offender by current SBLs on Spamhaus. Here is a screenshot of that list on Spamhaus as of December 5th, 2009. Also, note. The list below as of 12/5/09. 1. ovh.net  AS16276 = 77 SBLs 2. telefonica.es AS3352 = 59 SBLs 3. […]


On September 6th, 2009, Spamhaus blocked a /16 which is 65,536 IPs (1 Class B) on its SBL. This listing is filed under SBL68517. The IP range that is being blocked is 132.240.0.0/16. One can view the ASN information of 132.240.0.0 at robtex. According to robtex, the upstream for this range is AS3257 which is […]


While going through Spamhaus SBLs, I found this updated /23 under RIPE. It would seem that most times when Spamhaus is unsure of the exact ownership of a netblock or the downstream has a small number of IPs assigned to it, the volunteers will place it under the regional registry (RIR). I researched the IP […]


Very recently, Swedish upstream provider, TeliaSonera, threatened cut off its direct connection to Junik (AS8206) JUNIK-RIGA-LV JUNIKNET if Junik.lv did not cut off its own downstream (Real Host) because of its reputation of being rogue (hosting zeus botnets). By Monday August 3rd, 2009, Real Host lost its connectivity. Jart Armin of HostExploit recently tweeted about […]


Good news for service provider Tata Communications (AS4755) and Spamhaus and some bad news for Tiscali (now Tinet – AS3257). For approximately a month, the large Indian-based provider, Tata Communications, has been still working on its SBL (Spamhaus Block List) by resolving its listings. This means the administrators at Tata Communications have been ending services […]


Yahoo has a big problem with spammers. This abuse of its Yahoo Groups services has been going on for at least since late 2008. Much of this information is already out there for those to read but somewhat scattered, so I am providing links within this blog.  The spammers are selling various pharma spam. My […]


ASN stands for Autonomous System Number. AS or ASN followed by a number is used to identify an autonomous system on the internet by people who manage networks on the Internet. One well-known example of an ASN is AT&T whose is ASN7018. Most people who may be network engineers are concerned with ASNs. Also, netizens […]


Update: SORBS was sold to a new owner at an unspecified price. Details at bottom of post: updated 1st August 2009. On Monday, 22 June, it was announced by Michelle Sullivan, owner of SORBS (IP: 203.15.51.39 at ASN2764 AAPT), on the SORBS homepage that she would shut the blacklisting services down by July 21st. Apparently […]