Re: Obfuscated Windows excecutables (was Re: Ideas sought for blocking new variant of cryptolocker)

2014-07-10 Thread Joe Acquisto-j4
>>> On 7/10/2014 at 3:35 PM, "David F. Skoll" wrote: > On Thu, 10 Jul 2014 12:25:50 -0700 > Ted Mittelstaedt wrote: > >> Fundamentally I think the problem is with attachments. > > No, the problem is not with attachments. An attachment actually included > in an email is no more dangerous than a

Re: Smtp auth and trusted_networks

2014-07-10 Thread Giampaolo Tomassoni
Il 2014-07-10 17:36 Nick I ha scritto: Hi In the following example our mx received message with ESMTPSA from 1.1.1.1 and that ip detected as trusted. Our trusted_networks list do not have this ip configured. I need to run rbl check against 1.1.1.1. Is there any settings to not add authentica

Re: Obfuscated Windows excecutables (was Re: Ideas sought for blocking new variant of cryptolocker)

2014-07-10 Thread David F. Skoll
On Thu, 10 Jul 2014 12:25:50 -0700 Ted Mittelstaedt wrote: > Fundamentally I think the problem is with attachments. No, the problem is not with attachments. An attachment actually included in an email is no more dangerous than an attachment downloaded via a link. Email attachments are far too c

Re: Obfuscated Windows excecutables (was Re: Ideas sought for blocking new variant of cryptolocker)

2014-07-10 Thread Ted Mittelstaedt
On 7/10/2014 12:12 PM, John Hardin wrote: On Thu, 10 Jul 2014, Ted Mittelstaedt wrote: On 7/10/2014 8:26 AM, David F. Skoll wrote: On Wed, 9 Jul 2014 17:44:26 -0700 (PDT) John Hardin wrote: > I'm not excusing their approach, but I'm saying there are a lot of > sources of real-world friction

Re: Obfuscated Windows excecutables (was Re: Ideas sought for blocking new variant of cryptolocker)

2014-07-10 Thread John Hardin
On Thu, 10 Jul 2014, Ted Mittelstaedt wrote: On 7/10/2014 8:26 AM, David F. Skoll wrote: On Wed, 9 Jul 2014 17:44:26 -0700 (PDT) John Hardin wrote: > I'm not excusing their approach, but I'm saying there are a lot of > sources of real-world friction that lead to suboptimal solutions like

Re: Obfuscated Windows excecutables (was Re: Ideas sought for blocking new variant of cryptolocker)

2014-07-10 Thread Dave Pooser
On 7/10/14, 1:43 PM, "Ted Mittelstaedt" wrote: >And when victim of the phish clicks on the SSL link then the browser >sends out alarm bells that the SSL certificate is compromised and not to >go there, eh? If we could rely on users to not click right through that SSL warning, we would be living

Re: Obfuscated Windows excecutables (was Re: Ideas sought for blocking new variant of cryptolocker)

2014-07-10 Thread David F. Skoll
On Thu, 10 Jul 2014 11:43:21 -0700 Ted Mittelstaedt wrote: > SO I think that using PGP was the right course of action here. Yes, of course. But they should supply the PGP *software* using a separate delivery mechanism from the PGP-encrypted *payload*. Encouraging people to rename and run execut

Re: Obfuscated Windows excecutables (was Re: Ideas sought for blocking new variant of cryptolocker)

2014-07-10 Thread Ted Mittelstaedt
On 7/10/2014 8:26 AM, David F. Skoll wrote: On Wed, 9 Jul 2014 17:44:26 -0700 (PDT) John Hardin wrote: I'm not excusing their approach, but I'm saying there are a lot of sources of real-world friction that lead to suboptimal solutions like this. I expect the desire to avoid requiring install

Re: Obfuscated Windows excecutables (was Re: Ideas sought for blocking new variant of cryptolocker)

2014-07-10 Thread John Hardin
On Thu, 10 Jul 2014, Ted Mittelstaedt wrote: Although from the pro-gunners out there now we will hear the "software doesn't kill people, users kill people" arguments claiming it's not Symantec's fault Please do not go there. -- John Hardin KA7OHZhttp://www.impsec.org/~jh

Re: Obfuscated Windows excecutables (was Re: Ideas sought for blocking new variant of cryptolocker)

2014-07-10 Thread Kevin A. McGrail
On 7/10/2014 12:31 PM, Ted Mittelstaedt wrote: You didn't read your own code of ethics. It states if you have a bias, you disclose it. David HAD a bias in his original post and DID NOT disclose it. He DID subsequently disclose that bias AFTER I had called him on it and I commend him for it. T

Re: Obfuscated Windows excecutables (was Re: Ideas sought for blocking new variant of cryptolocker)

2014-07-10 Thread Ted Mittelstaedt
You didn't read your own code of ethics. It states if you have a bias, you disclose it. David HAD a bias in his original post and DID NOT disclose it. He DID subsequently disclose that bias AFTER I had called him on it and I commend him for it. This is the problem with codes of ethics - it's e

Re: Obfuscated Windows excecutables (was Re: Ideas sought for blocking new variant of cryptolocker)

2014-07-10 Thread Ted Mittelstaedt
On 7/9/2014 5:18 PM, David F. Skoll wrote: On Wed, 09 Jul 2014 14:44:27 -0700 Ted Mittelstaedt wrote: David DID NOT say that. He said that "he was shocked to discover" Why are you assuming he is under NDA or he is an employee of this company? Let me clarify the situation: 1) I'm the owne

Re: Obfuscated Windows excecutables (was Re: Ideas sought for blocking new variant of cryptolocker)

2014-07-10 Thread Kevin A. McGrail
I believe strongly that ALL IT admins would be well guided by reading the SAGE ethics guide http://www.pccc.com/base.cgim?template=sage_code_of_ethics Can't recommend it highly enough and I think it would guide well in this gray areas on how to handle things. I didn't like that a poster wi

Smtp auth and trusted_networks

2014-07-10 Thread Nick I
Hi In the following example our mx received message with ESMTPSA from 1.1.1.1 and that ip detected as trusted. Our trusted_networks list do not have this ip configured. I need to run rbl check against 1.1.1.1. Is there any settings to not add authenticated host to trusted hosts ? We use SpamAssa

Re: Obfuscated Windows excecutables (was Re: Ideas sought for blocking new variant of cryptolocker)

2014-07-10 Thread David F. Skoll
On Wed, 9 Jul 2014 17:44:26 -0700 (PDT) John Hardin wrote: > I'm not excusing their approach, but I'm saying there are a lot of > sources of real-world friction that lead to suboptimal solutions like > this. I expect the desire to avoid requiring installation (and > maintenance!) of PGP/GPG by th

Re: Ideas sought for blocking new variant of cryptolocker

2014-07-10 Thread Kevin A. McGrail
On 7/8/2014 10:41 PM, David F. Skoll wrote: On Tue, 08 Jul 2014 21:03:35 -0400 "Kevin A. McGrail" wrote: So this sounds like you are searching the entire email for this string which just sounds inefficient especially if they use some big attachments. It's not too bad because the regex is simp