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Computer Security - Need antispam software - mysterious spam encountered |
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#1 |
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In particular, is anyone familiar with a program that returns an email with
appropriate headers, messages, etc. to make it look like the address is nonexistant? Its for personal use. I bought printer ink on EBay several days ago, but never did I use my ISP provided email address in any portion of communication or transaction or payment for the ink. But this morning I received a piece of spam asking if I want to save on printer ink and supplies. I suppose I'll have to install an antispam filter in my email client (or use its own filter) to delete anything with keywords ink and printer in it. But this new spam is mystifying. I don't think its coincidence - I've never received a message like it (referring to buying ANYTHING WHATSOVER) to this email address. Its a million to one chance of being a coincidence. I paid for the ink with Paypal, but they don't have this email address. Nor does Ebay. I seriously doubt that the Yahoo account I used for the transsaction has any references to this email ID. How could this address possibly have been mined??? (With reference to mining, I did sweeps of my entire HDs with at least four different up-to-date antispyware/adware/malware scanners in the past seven days. And I empty my cookie files almost daily.) Jeff |
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#2 |
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"Jeff" <> wrote:
> In particular, is anyone familiar with a program that returns an email > with appropriate headers, messages, etc. to make it look like the > address is nonexistant? That won't work... a) The From-header is usually faked, so the spammer won't even GET your fake error message b) The poor guy who really owns the address abused as a From: will get tons of error messages - why do you want to harrass him even more? c) Error messages usually are sent from the Postmaster-account. You aren't the postmaster at your ISP, so if you send mails pretending to be postmaster you'll get in trouble d) If the spammer actually takes the time to read through all the bounces, he'll notice that there is a considerable delay between sending his spam and receiving your fake bounce - which shows that the bounce was generated after receiving the message, which wouldn't have been possible if it didn't exist, therefore verifying that the address is correct. Juergen Nieveler -- Love thy neighbour, but don't get caught. Juergen Nieveler |
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#3 |
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Juergen Nieveler wrote:
> "Jeff" <> wrote: > > >>In particular, is anyone familiar with a program that returns an email >>with appropriate headers, messages, etc. to make it look like the >>address is nonexistant? > > > That won't work... > > a) The From-header is usually faked, so the spammer won't even GET > your fake error message > b) The poor guy who really owns the address abused as a From: will > get tons of error messages - why do you want to harrass him even more? > c) Error messages usually are sent from the Postmaster-account. You > aren't the postmaster at your ISP, so if you send mails pretending to > be postmaster you'll get in trouble > d) If the spammer actually takes the time to read through all the > bounces, he'll notice that there is a considerable delay between > sending his spam and receiving your fake bounce - which shows that > the bounce was generated after receiving the message, which wouldn't > have been possible if it didn't exist, therefore verifying that the > address is correct. > > Juergen Nieveler Mailwasher is a good antispammer tool that does what your asking, but it won't work, as spammers expect failed mail. Recently it was discovered however certain major manufactures were embedding phone home software in their print driver software. The one manufacture that has commented and indicated this was to monitor ink usage on their printers, however i haven't heard if anyone has fully cracked the data stream sent. Bottom line it could just as easily be spammer got mail addy through other means such as other spyware on system etc. If you use IE and the addy is embedded in browser, it is an easy thing to glean using various methods. Spammer may have "guessed" address with a name dictionary attack against your mail server. From what I have seen, they are pretty industrious in gathering addresses, and can gather them using multiple methodologies. I have even suspected someone is gleaning addresses off of various mail gateways. There are a number of mail servers located on BOTNETS. Someone you have sent mail to in the past may have lost your address for you. Bottom line if addy is used on the net, it seldom stays virgin long. I would say you can expect more spam in the future. It is good fried. Winged winged |
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#4 |
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In article <jhhvd.753191$8_6.686917@attbi_s04>, Jeff wrote:
>In particular, is anyone familiar with a program that returns an email with >appropriate headers, messages, etc. to make it look like the address is >nonexistant? Doesn't work that way. See RFC2821 1. A properly configured mail server should know all of the valid addressees that it should accept mail for, and reject mail to other addressees at the SMTP stage. 2. While RFC2821 Section 2.4 does say that [quote] Delivery SMTP systems MAY reject ("bounce") such messages rather than deliver them. [en-quote], most mail administrators agree that such bounces are nearly always useless, especially with respect to spam that ALWAYS has fake headers. >Its for personal use. I bought printer ink on EBay several days ago, but >never did I use my ISP provided email address in any portion of >communication or transaction or payment for the ink. But this morning I >received a piece of spam asking if I want to save on printer ink and >supplies. Has your ISP address ever been seen on the Internet ANYWHERE? Is your address guessable (common name, or combination)? Nearly all spam is sprayed at any conceivable address - without caring if it's real or not. You may want to send mail to yourself in the same way you normally send mail(send it from yahoo to comcast, or vice versa), and then examine the RAW mail (including the raw headers) to see what hints your mail tool may be including in your outgoing mail. You may be unpleasantly surprised. >I suppose I'll have to install an antispam filter in my email client (or use >its own filter) to delete anything with keywords ink and printer in it. Oh, so you don't mind the spam that's flogging various pills, p*n*s enhancers, mortgage referrals, and so on? Get a filter that deletes the spam on the ISPs POP server - there are plenty of them, including those that can run on your windoze box. >How could this address possibly have been mined??? (With reference to >mining, I did sweeps of my entire HDs with at least four different >up-to-date antispyware/adware/malware scanners in the past seven days. Do you use this address at all? It could be someone who has your address in their buddy list or address book as well. I've never used the official username for this ISP, and they allow up to 4 other addresses that I can replace monthly. As a result, three of my family now only know a temporary address for me, which indeed changes monthly for some magic reason. >And I empty my cookie files almost daily.) But does your computer (nevermind the browser that you are apparently using as a news reader, and probably a mail tool as well) know that real address? You're using Outhouse Express under windoze - which isn't exactly noted as being a secure thing. Old guy Moe Trin |
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#5 |
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Not a thing in the past week. Maybe this was a very weird coincidence.
"Jeff" <> wrote in message news:jhhvd.753191$8_6.686917@attbi_s04... > In particular, is anyone familiar with a program that returns an email with > appropriate headers, messages, etc. to make it look like the address is > nonexistant? > > Its for personal use. I bought printer ink on EBay several days ago, but > never did I use my ISP provided email address in any portion of > communication or transaction or payment for the ink. But this morning I > received a piece of spam asking if I want to save on printer ink and > supplies. > > I suppose I'll have to install an antispam filter in my email client (or use > its own filter) to delete anything with keywords ink and printer in it. But > this new spam is mystifying. I don't think its coincidence - I've never > received a message like it (referring to buying ANYTHING WHATSOVER) to this > email address. Its a million to one chance of being a coincidence. I paid > for the ink with Paypal, but they don't have this email address. Nor does > Ebay. I seriously doubt that the Yahoo account I used for the transsaction > has any references to this email ID. How could this address possibly have > been mined??? (With reference to mining, I did sweeps of my entire HDs with > at least four different up-to-date antispyware/adware/malware scanners in > the past seven days. And I empty my cookie files almost daily.) > > Jeff |
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#6 |
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On 13 Dec 2004 20:54:28 EST, winged <> wrote:
<SNIP> > From what I have seen, they are pretty >industrious in gathering addresses, and can gather them using multiple >methodologies. I have even suspected someone is gleaning addresses off >of various mail gateways. There are a number of mail servers located on >BOTNETS. Someone you have sent mail to in the past may have lost your >address for you. Bottom line if addy is used on the net, it seldom >stays virgin long. I would say you can expect more spam in the future. Good point. You would HOPE that anybody who operates ANY server on the internet would be constantly vigilant (at least more so than the typical AOHell or ComCrap customer) for ANY unknown activity by their server, but one of the spammers jobs is to develop new ways to get email addresses. It would take just one 0wn3d server to get lots of new, valid addresses for one of these assholes. And this will happen no matter what YOU do about blocking, filtering, or ignoring their ****. And this will be a new breed of spammer with your email address, which may mean that filtering his ****, once he gets your address, will be harder. -- Cheers, Chuck Paranoia comes from experience - and is not necessarily a bad thing. Chuck |
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#7 |
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Moe Trin wrote:
> In article <jhhvd.753191$8_6.686917@attbi_s04>, Jeff wrote: > > >>In particular, is anyone familiar with a program that returns an email with >>appropriate headers, messages, etc. to make it look like the address is >>nonexistant? > > > Doesn't work that way. See RFC2821 > > 1. A properly configured mail server should know all of the valid addressees > that it should accept mail for, and reject mail to other addressees at the > SMTP stage. > > 2. While RFC2821 Section 2.4 does say that [quote] Delivery SMTP systems MAY > reject ("bounce") such messages rather than deliver them. [en-quote], most > mail administrators agree that such bounces are nearly always useless, > especially with respect to spam that ALWAYS has fake headers. > > >>Its for personal use. I bought printer ink on EBay several days ago, but >>never did I use my ISP provided email address in any portion of >>communication or transaction or payment for the ink. But this morning I >>received a piece of spam asking if I want to save on printer ink and >>supplies. > > > Has your ISP address ever been seen on the Internet ANYWHERE? Is your > address guessable (common name, or combination)? Nearly all spam is > sprayed at any conceivable address - without caring if it's real or not. > > You may want to send mail to yourself in the same way you normally > send mail(send it from yahoo to comcast, or vice versa), and then > examine the RAW mail (including the raw headers) to see what hints > your mail tool may be including in your outgoing mail. You may be > unpleasantly surprised. > > >>I suppose I'll have to install an antispam filter in my email client (or use >>its own filter) to delete anything with keywords ink and printer in it. > > > Oh, so you don't mind the spam that's flogging various pills, p*n*s > enhancers, mortgage referrals, and so on? Get a filter that deletes > the spam on the ISPs POP server - there are plenty of them, including > those that can run on your windoze box. > > >>How could this address possibly have been mined??? (With reference to >>mining, I did sweeps of my entire HDs with at least four different >>up-to-date antispyware/adware/malware scanners in the past seven days. > > > Do you use this address at all? It could be someone who has your address > in their buddy list or address book as well. I've never used the official > username for this ISP, and they allow up to 4 other addresses that I can > replace monthly. As a result, three of my family now only know a temporary > address for me, which indeed changes monthly for some magic reason. > > >>And I empty my cookie files almost daily.) > > > But does your computer (nevermind the browser that you are apparently > using as a news reader, and probably a mail tool as well) know that > real address? You're using Outhouse Express under windoze - which isn't > exactly noted as being a secure thing. > > Old guy Well, I finally installed Thunderbird and made it my default email client. I use either MyIE2 or Mozilla as my browser, so the only time I have to use IE is to check for Windows Updates. I could use one of my other browsers to do so, but the shortcut placed in my start menu launches IE to check for updates, and it doesn't seem important enough to change. Hopefully Microsoft is not so careless as to allow hackers to redirect users trying to connect to the Windows Update website. And that ink-toner spam item was an isolated event. Its just a really bizarre coincidence that I happened to order ink cartridges using one of my internet accounts just a couple days before that piece of spam arrived. Jeff G |
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#8 |
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In article <souzd.239577$5K2.126956@attbi_s03>, Jeff G wrote:
>Well, I finally installed Thunderbird and made it my default email >client. I use either MyIE2 or Mozilla as my browser, so the only time I >have to use IE is to check for Windows Updates. It's a bit of a pity, but the number of dedicated specific tools for windoze is comparatively limited. Mail (for example) should be read or created with a tool that does mail, and nothing else. File downloads should be done with a different tool, as should visiting web sites. Actually, one of my mail filter rules automatically drops any mail that contains HTTP. >I could use one of my other browsers to do so, but the shortcut placed >in my start menu launches IE to check for updates, and it doesn't seem >important enough to change. Hopefully Microsoft is not so careless as to >allow hackers to redirect users trying to connect to the Windows Update >website. I'm told that IE is required to get the updates - I wouldn't know, having stopped using windoze in 1992. Actually, while you access microsoft, you may be getting the downloads from an Internet content provider like Akamai (which has servers located in many cities of the world, to provide faster service). But you don't go there direct - it's a redirect from microsoft. >And that ink-toner spam item was an isolated event. Its just a really >bizarre coincidence that I happened to order ink cartridges using one of >my internet accounts just a couple days before that piece of spam arrived. That happens. There are a number of products and services that are a natural for spam artists. Ink/toner is grossly overpriced (that's how the printer manufacturers make the money - the printers are often sold well below cost), so selling a shoddy product at a merely excessive price will find a huge market. As they spamming entities are pretty difficult to trace, and they change names and "locations" as often as you change your shorts, they can make their money, and move on almost before the product has been delivered to you. Also, many of them launder their services through overseas locations, making criminal complaints difficult to pursue. Paying by credit card may offer a very tiny possibility of combating fraud, but the real solution is to never purchase anything from an email offer or pop-up ad. It's NEVER a good deal. Old guy Moe Trin |
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