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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1answer
44 views

As a virus can use my system or browser to send spam? [on hold]

I wanted to know and what is the method that a malicious person who created the possible virus uses to email people without them knowing? Do they steal credentials or use some kind of language system ...
3
votes
1answer
107 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 ...
0
votes
2answers
76 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
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1answer
35 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 ...
2
votes
2answers
109 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 ...
1
vote
1answer
82 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
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1answer
61 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 ...
-1
votes
1answer
43 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 ...
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votes
1answer
66 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 ...
0
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0answers
20 views

Spam mail header Analysis [migrated]

I have downloaded spam dataset ,as i am working on spam detection. Below is a snapshot of Email header received. Received: from localhost (localhost [127.0.0.1]) by phobos.labs.netnoteinc.com (...
1
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1answer
53 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
109 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
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0answers
52 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
59 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 ...
6
votes
1answer
127 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 ...
0
votes
1answer
79 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 ...
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
91 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
59 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 ...
0
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0answers
27 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 ...
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votes
1answer
57 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 ...
1
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0answers
64 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
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 ...
0
votes
1answer
28 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?...
1
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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
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1answer
46 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
82 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
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2answers
120 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
119 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
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1answer
92 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://...
4
votes
3answers
145 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
62 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'...
1
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1answer
59 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
101 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 ...
3
votes
2answers
104 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 ...
10
votes
3answers
517 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
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 ...
4
votes
1answer
161 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 ...
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votes
1answer
65 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 ...
2
votes
1answer
69 views

Mail from Outlook to GMX: via Yahoo? [closed]

On inspecting source of a clear scam mail I received, I noticed that the mail send from Outlook to GMX has somehow passed through Yahoo servers - how come? Is it some way to hide their original ...
0
votes
1answer
74 views

How can I test my spamfilter under real world conditions?

We are currently planning to migrate our outsourced mail solution to our own servers. The last thing we need to test is the spam filter. We are going to use a cloud based spam and anti virus filter ...
1
vote
2answers
686 views

Getting spam calls from numbers similar to my own

My phone number is 456-123-XXXX (American phone number + area code). Over the past few months I get fairly regular spam calls from other numbers also beginning with 456-123-XXXX, where the last four ...
8
votes
3answers
146 views

How can you prevent email addresses from being harvested from a registration form?

When you go to a website's login form and enter the wrong credentials, the website can give you one of three error messages: Your email is wrong Your password is wrong Your email or password is ...
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votes
1answer
46 views

How does SMTP facilitate sending spam? [closed]

My friend tells me that there are exist weakness of the Simple Mail Transfer Protocol (SMTP) that make make it easy to send spam. Is this true?
1
vote
3answers
116 views

Is it possible to gain control of a Windows computer with no browser notifications when a user clicks a URL?

If so, how? Currently working on a spam filter for a large company and trying to determine the level of risk involved with this. We run many different Windows versions. This CNN video seems to imply ...
1
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0answers
162 views

How Skype Click to Call plugin is used to send spam?

My friend had Skype Click to Call plugin installed within browser on Mac OSX. And his Skype account started to send some automatic spam messages linking to lose weight websites (via goo.gl) without ...
0
votes
1answer
53 views

Unique human view count system without captcha on Pay Per click system, using cryptographic proof of work

I have a system that will be paying users per unique view on a page. I need to prevent 80% of fraudulent automated traffic from being counted. I need to avoid captcha.I would like to implement a ...
8
votes
3answers
700 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
vote
2answers
308 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 ...