jm + blocklists   8

Spammergate: The Fall of an Empire
Featuring this interesting reactive-block evasion tactic:
In that screenshot, a RCM co-conspirator describes a technique in which the spammer seeks to open as many connections as possible between themselves and a Gmail server. This is done by purposefully configuring your own machine to send response packets extremely slowly, and in a fragmented manner, while constantly requesting more connections.
Then, when the Gmail server is almost ready to give up and drop all connections, the spammer suddenly sends as many emails as possible through the pile of connection tunnels. The receiving side is then overwhelmed with data and will quickly block the sender, but not before processing a large load of emails.


(via Tony Finch)
via:fanf  spam  antispam  gmail  blocklists  packets  tcp  networking 
11 weeks ago by jm
#BPjMleak
'Leak of the secret German Internet Censorship URL blacklist BPjM-Modul'.

Turns out there's a blocklist of adult-only or prohibited domains issued by a German government department, The Federal Department for Media Harmful to Young Persons (German: "Bundesprüfstelle für jugendgefährdende Medien" or BPjM), issued in the form of a list of hashes of those domains. These were extracted from an AVM router, then the hashes were brute forced using several other plaintext URL blocklists and domain lists.

Needless to say, there's an assortment of silly false positives, such as the listing of the website for the 1997 3D Realms game "Shadow Warrior": http://en.wikipedia.org/wiki/Shadow_Warrior
hashes  reversing  reverse-engineering  germany  german  bpjm  filtering  blocklists  blacklists  avm  domains  censorship  fps 
july 2014 by jm
Content filtering by UK ISPs
An exhaustive list from the UK's Open Rights Group
filtering  uk  isps  org  porn  blocklists  internet 
december 2013 by jm
3D-Printer Manufacturer Creates Software Filter To Prevent Firearm Printing
'[Create It REAL], which sells 3D printer component parts and software, recently announced that it has come up with a firearm component detection algorithm that will give 3D printers the option to block any gun parts. The software compares each component a user is trying to print with a database of potential firearms parts, and shuts down the modeling software if it senses the user is trying to make a gun.'
blocklists  filtering  guns  weapons  3d-printing  future  firearms 
july 2013 by jm
Russia's anti-child-porn internet blocklist allegedly being used for general censorship
Allegedly being used to censor political and anti-corruption journalism, and a Russian wikipedia-like site for hosting an article about suicide
censorship  feature-creep  russia  politics  blocklists 
february 2013 by jm
Internet Content Blocking: a primer [presentation]
from Malcolm Hutty, Head of Public Affairs at LINX (UK ISP organisation). insightful and a good summary of the state of the art in ISP-hosted filtering/blocking solutions.  The final few slides are especially useful
presentations  via:tjmcintyre  content-blocking  filtering  linx  malcolm-hutty  isps  blocking  blocklists  internet  privacy  from delicious
february 2011 by jm
Draft Functional Spec of Hadopi "securisation" software
Crazy suggestions leaked from the French anti-piracy authority. Mandatory host-based and router-based anti-piracy software and firmware with blocklists of suspect keywords, suspicious applications, TCP ports, protocols; detect suspicious apps installed; detect use of open wifi; detect use of anti-filtering/anti-blocking "workarounds" (ie. VPNs and Tor). Log all this to a dual journal, one of which will be encrypted using key escrow (presumably for use in prosecutions), retaining data for a year. Basically, a mandatory snooping infrastructure. Where would this leave Macs and Linux for French users?
hadopi  piracy  filtering  snooping  big-brother  1984  via:adulau  vpn  tor  blocklists  from delicious
july 2010 by jm
Anti Spear-phishing SpamAssassin ruleset
from Julian "MailScanner" Field (via the SA users list)
spamassassin  anti-spam  rulesets  sa-update  phishing  blocklists 
august 2009 by jm

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