Spam is the use of electronic messaging systems (including most broadcast media, digital delivery systems) to send unsolicited bulk messages indiscriminately.

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2
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2answers
169 views

What risks do I have now that I accidentaly opened a suspicious URL send to me by Skype?

The following URL was sent to me by a trusted Skype contact (from my university): WARNING - DO NOT CLICK IF YOU DON'T KNOW WHAT YOU'RE DOING http://bit.ly/28PPw3V#dahubas=my_skype_id I clicked on ...
0
votes
1answer
36 views

relationship between anti-spam solutions and whois databases

Are there anti-spam SMTP proxies(like ASSP, qpsmtpd) or e-mail spam filtering solutions in general(like SpamAssassin) out there which create for example block filters based on objects in RIR databases?...
-4
votes
0answers
11 views

External email from specific database going to junk folder [migrated]

I have migrated from Exchange 2010 to Exchange 2013, after which things are okay. I have four server plus two databases as below: Servers: CAS01, CAS02, MBX01, MBX02 Database: DB1 mounted on MBX01 ...
4
votes
3answers
4k views

I'm getting spam e-mail…from myself?

I noticed yesterday that I had received spam e-mail, but my own e-mail address was listed as the sender. Naturally, I changed my password. This is probably a spoof, but I don't know enough about ...
1
vote
2answers
49 views

Getting sudden spam emails with my name and city

The last three days I've been getting email spam to my Gmail account with some variation of the following body content: Hey [my name], are you from [my city]? And then there will be some random key ...
1
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2answers
20 views

Does the use of the non-registered domains in SPF records introduce a security risk?

Recently I was reading about the Sender Policy Framework (SPF) record syntax on OpenSPF.com. Sender Policy Framework (SPF) is a simple email-validation system designed to detect email spoofing by ...
0
votes
1answer
36 views

Which is better: detecting spam at receiver or source?

Background I researched a detection of spam sent out using bots. After studying different techniques used by bots to deliver spam, I have no generalised solution to detect spamming at the source ...
0
votes
2answers
43 views

Spam mails originating from botnet

Background I am working on spam detection at the receiver side,i.e where all mails are delivered,i.e at the mailserver side. Spammers are capable of sending spam mails through Bots,Open relays and ...
6
votes
1answer
136 views

How did my browsing choices reach an Alibaba seller?

Events, spaced about evenly over 2 months: Repeatedly ordered small amounts of webbing on a rather reputable Polish site (Allegro.pl, much like ebay). Got targeted ads in Skype for webbing on ...
11
votes
4answers
16k views

Can most mail from *.ru be considered spam?

Is it safe to assume that most, if not all, emails from a *.ru domain may be considered spam? From a log of 30000 emails from *.ru, its all been spam (over two months).
4
votes
1answer
153 views

How to de-obfuscate a malicious payload?

I've received some spam email that led to a JavaScript file which I assume is malicious. My curiosity got the best of me so I opened the file in notepad and I'm trying to make sense of the code but I ...
6
votes
2answers
885 views

Is there a dictionary of visibly similar Unicode characters for Spam processing?

I have spam that looks like this: мy вυddy'ѕ мoм мαĸeѕ $74/нoυr oɴ тнe lαpтop. ѕнe нαѕ вeeɴ lαιd oғғ ғor ѕeveɴ мoɴтнѕ вυт lαѕт мoɴтн нer pαy cнecĸ wαѕ $19420 jυѕт worĸιɴɢ oɴ тнe lαpтop ғor α ...
0
votes
2answers
83 views

How am I being scammed?

I have received an email, claiming to be from Microsoft. Here is a snapshot of it: Google marked this email as spam with the following notice: These are some header details: Now, the text of ...
1
vote
1answer
39 views

Hops encountered More for spam Mails than Legitimate Mails

Background I am working with email headers for spam detection. Each E-Mail header contains many "Received:" headers fields. Each "Received:" header is added by an intermediate Smtp/Mail server in the ...
1
vote
1answer
95 views

Website fell under the Google filters for inbound links

We received a strange message on our support email. Message:Website http://fermersovet.ru/ fell under the Google filters for inbound links. Google Webmaster shows that your site www.mydomain....
0
votes
1answer
71 views

How should I handle a spam account I don't control from sending spam emails with my username?

A family member contacted me yesterday saying their email has been hacked and that some other family members received spam emails from their account. For this example, lets say the hacked family ...
12
votes
5answers
2k views

Hashcash, is this really used?

I just heard about this term, is it really used? The concept does not seem new, is it used and/or implemented in current technologies?
8
votes
3answers
718 views

How to protect contact forms against being misused for mass-mailing?

A common function of contact forms is to send the contact message not only to the site owner but also to the person who sent the contact request. What are good measures to protect against the form ...
-1
votes
1answer
46 views

Spammer uses foreign domain for redirection [duplicate]

A friend of mine's Skype was "infected" with a bot that sends links to it's friends. The link points to LinkedIn, but as soon as you make a GET request, it redirects you to an advertising page. This ...
13
votes
3answers
2k views

How are spammers using LinkedIn “http://linkedin.com/slink?code=…” URLs?

I was sent this kind of link from presumably compromised Skype account, via a skype message (do not click unless you have a sandbox or something to protect you): https://www.linkedin.com/slink?code=...
-3
votes
1answer
100 views

Spam email sent to my contacts pretending to be me.

I just found out someone has been sending spam emails to my contacts. I first thought that my account was hacked, but the emails aren't coming from my account but from a weird email address (my name ...
1
vote
1answer
58 views

What could cause a sudden influx of unfiltered spam email? [closed]

Waking up this morning, I found a large number of spam emails in my outlook inbox. Typically I never see any spam in the inbox, as it is almost always successfully filtered. Even in the junk box I ...
0
votes
3answers
117 views

How do botnets not get caught when using Gmail accounts for spamming? [closed]

Botnets are Spamming through web-mail services like gmail.com,hotmail.com,etc. by compromising email-accounts I read a post from this forum about how online accounts are compromised. Following are ...
1
vote
0answers
73 views

Detecting Bots Who are sending Spam Mails via Webmail

I am working on spam Detection done by botnets. Some Information Recently,I came through a techique to detect the spammer in my network which is based on the anamolous amount of MX queries,outbound ...
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votes
1answer
66 views

How do Bots Spam Where Outgoing SMTP is blocked

I have read,that bots in an internal network talk directly to External Mail servers instead of going through the Internal Mailserver to deliver spam. Query If it's true, than how do Bots spam do so ...
0
votes
1answer
95 views

Email sending out spam to many contacts

I'm asking on behalf of a friend. A few days ago, I received a email with his full name (with no subject), thought that's from him. But when I opened it, there was only an obvious spam link, and I ...
3
votes
1answer
98 views

Where can I find a feed of actual spam emails? [duplicate]

I am looking for a feed of e-mail spam messages. I searched for one but found nothing that I can use. Does anyone know a site or service that offers a feed of actual spam messgaes that are currently ...
3
votes
1answer
68 views

Spam email text analysis

A spam email was filtered by my email service provider. The obvious footprints such as email address, 'click here' links, coupon code, urgency to receive the rewards are all there. At the bottom of ...
1
vote
0answers
82 views

Website Link Changed to Spam in Google Search Results [closed]

My website is the first result for the search term "word search solver" in Google. Recently, I noticed a huge drop in traffic (almost all my traffic comes from Google), so I did a quick search. What I ...
0
votes
0answers
29 views

Detecting Spamming activities of Botnets

Remarks Hello Everyone,thanks for being a nice platform for expressing Everyone's Doubts/Views. Problem Statement I want to detect spamming activity of botnets Background Information about ...
-2
votes
1answer
64 views

How can I mitigate scam comments on my YouTube videos? [closed]

I'm an author of software aid for online game League of Legends. I have posted several (precisely four) videos that explain how the software works and is meant to be used. The game involves paid ...
0
votes
2answers
59 views

Reducing the success ratio of email harvesting

Would / does the following work to hamper email harvesting by spammers ? Since spammers - among other things - do automated email harvesting by looking for email addresses in web pages, it follows ...
1
vote
1answer
28 views

Securing Web Contact Forms Against Spams

I created a web contact from with the following restrictions: An IP can send only 1 query per 8 hours. A generic text based bootstrap captcha for the form (I know this can be replaced with ...
1
vote
1answer
53 views

Spam protection for public GPG keys?

Public keys published to a server almost always contain emails. Is there any sort of protection against bot harvesters that will use that email for spam?
0
votes
3answers
107 views

Optimizr, Is it secure or spam? [closed]

I received a mail from optimizr.net. They say that I have some errors in my web I never click to links on mail. So I went to google and they have a nice web. They say that their tool is to check ...
1
vote
2answers
168 views

How can we protect signup APIs from brute force registration?

This is a general question but its prompted by a fairly open API I have for a file storage service that needs to have its front door better locked down. We have an API like POST '/signup' that just ...
3
votes
2answers
135 views

How Does A Hacker Send Spam Emails from Gmail with Two Factor Turned On?

We recently had an incident where two-factor authentication was enabled on a Gmail account but the account was sending spam messages. The device login activity shows no abnormal devices accessing the ...
1
vote
1answer
99 views

How to deal with spam that contains my personal details?

I just noticed some spam in my inbox in GMail that is from a very suspicious e-mail address (partially redacted anonymous@webXXXXXXX.ad.aruba.it) containing a link to a similarly suspect URL (http://...
1
vote
2answers
366 views

Where can I get a list of “bad” IP addresses that are likely to be used by attackers or spammers? [closed]

Is there an open source project or a list of "bad" IP addresses or ranges that are likely to be used by attackers or spammers? UPDATE: ideally I want it to be a service call so I can call it using ...
4
votes
3answers
177 views

are automatic “out of office” email replies bad security practice?

I remember reading somewhere that you shouldn't reply to spam because it confirms that the email is used, and makes it more likely that you will be targetted. Does this mean that automatic replies ...
3
votes
3answers
63 views

Collect infected email attachments

I am having catch-all mailboxes for a lot of domains. The mails I receive for them are either spam or have viruses or trojans attached. So far I am just throwing them away, but I wondered if it wasn'...
4
votes
1answer
163 views

Someone called my cell phone offering services about something I have been looking for in the web

I recently started gathering information about poker and poker online. I had no idea about it and I have spent about a week surfing the web (mainly using Google) and consulting different web pages ...
1
vote
1answer
61 views

Preditrend spam, how did they get my friend contact list?

Today I had a malware reunion with a friend which name was used in the From field of a spam. I don't know if I should warn her about a potential security breach on her computer. Here is the situation....
4
votes
1answer
128 views

Databases with spam, phishing email examples [duplicate]

I'm working on a little project trying to see if I can predict the likelihood that an email is in fact a security risk (phishing, spam, social engineering, etc). I order to do this I need to have a ...
10
votes
3answers
535 views

Email unsubscribe handling security

There is another question with similar title: Unsubscribe safely however my question addresses completely another issue. I am trying to set up a notification system in the website, that will send ...
3
votes
2answers
118 views

Why do email that didn't pass SPF checks go to my mailbox?

I tried a website that supposedly sends spoofed email. I sent myself an email impersonating another email address and the message showed up in my yahoo mailbox even though according to the headers it ...
3
votes
3answers
160 views

What kind of email attack is this?

I received the following invoice_scan_nHl8GB.js as an email attachment from a spoofed email address/infected PC zipped in a E.zip. Strangely the sender's address is not properly spoofed, probably ...
21
votes
4answers
3k views

Would 'spam' mail really avoid eavesdropping?

spammimic.com offers a service that 'encrypts' your mail as 'spam', the rationale being that all mail services automatically filter out spam, and so if you're wanting to communicate with someone ...
0
votes
1answer
253 views

Correct way of dealing with spam via impersonation

I've been having a recurring problem at work: My boss's contacts keep receiving emails with links sent by a fake adress. The adress always has my boss's name + a different domain name every time. ...
-4
votes
1answer
69 views

Is it possible to Use someone public IP? [closed]

I am quite aware of the networking. But I have a confusion which I am searching over internet but did not come to any solution. Can we assign any specific IP to our PC or any device. Like I want to ...