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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3
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1answer
44 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 ...
-4
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0answers
15 views

Google search results redirecting to spam sites [on hold]

I have couple of wordpress based sites, recently notice that the respect search results for these websites redirecting users to spam sites. also i have noticed excessive CPU usage on my server. ...
0
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0answers
21 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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1answer
46 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
35 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
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0answers
23 views

Find commonalities between SPAM [closed]

We use symantec smg solution for email filtering to stop spam. Still one ID in the organization seems to be a target attack for a spam. The ID is a group ID with lot of users in it. The spam domain ...
0
votes
2answers
50 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
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0answers
13 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 ...
1
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1answer
26 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
24 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
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3answers
62 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
55 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
100 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
70 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 ...
4
votes
3answers
85 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
57 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 ...
1
vote
1answer
52 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 ...
4
votes
1answer
55 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
83 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 ...
9
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3answers
483 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
150 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
155 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 ...
-4
votes
1answer
64 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
51 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
65 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
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2answers
194 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
111 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
44 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?
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3answers
115 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 ...
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0answers
126 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
46 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 ...
7
votes
3answers
626 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 measurements to protect against the form ...
1
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2answers
237 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 ...
2
votes
3answers
43 views

Is there any benefit to spammers oversaturating a service?

If I understand correctly, spam is most effective when it looks like real content and entices a user to do whatever the spam is asking it to (for example, clicking on a link.) Naturally, keeping a low ...
8
votes
1answer
123 views

Got a spam mail with an htm attachment, is the script harmful?

Today I got an email with an htm attachment, the mth contains the below code: <html> <head> <script> var url = "" window.location.href= url; ...
0
votes
1answer
83 views

“Secure” emails from unfamiliar source(s)

The context is long, so I'll ask my question first. If an encrypted message is received from an unfamiliar sender and it's spam, how can I avoid receiving further messages of the same sort? If it's ...
54
votes
11answers
11k views

Why would a spammer try to get a (normal) image of mine?

Yesterday I found a spam mail in my inbox. I inspected it in order to find out why DSpam and SpamAssasin failed. You can find the raw German mail here, here's a translation: Good Morning. We got ...
1
vote
2answers
121 views

Is this spam SMS containing an audio file dangerous?

Yesterday I received a group text message from a number I don't know and opened it by mistake. I was in a group chat with two other people, one in Pennsylvania one in Massachusetts. The message body ...
2
votes
2answers
58 views

Does ISO 27001 allow cloud based Spam/Malware filter solutions

We are currently switching over to Exchange 2013 and we are thinking about outsourcing the spam and malware filtering to Microsofts Exchange Online Protection. Its implemented by changing the MX ...
3
votes
3answers
695 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 ...
2
votes
1answer
49 views

Can spambots access pages available to only registered, authenticated users?

I have a web application where users register and are activated via an email sent to the email address they supplied. Then there are pages that are only visible to registered users (non-user access ...
3
votes
1answer
43 views

A single site for reporting unknown virii

I have just received an email with an unknown virus. I happily passed through my scanners. I have checked it's still unknown to all of 4 anti-viruses I have an access to. I have already reported it ...
-1
votes
1answer
68 views

Server is Sending Spam

I have determined that my server is compromised because it is sending spam (from one of my legitimate addresses). How can I determine what's compromised? Does the attacker know my SSH password? ...
0
votes
1answer
206 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
156 views

What is the purpose of viagra spam? [closed]

We all have gotten them: The reflection of your size will stay forever in her eyes. Bigger pen!s gives you a bunch of benefits! I have girls that ring me for sex now, its amazing! Judging by ...
0
votes
1answer
42 views

Changing senders, same spam messages

We have a situation at work regarding to our mail filtering appliance and I was hoping that you could give us some insight on how to approach this issue. We've been receiving spam emails with the ...
3
votes
2answers
241 views

Reaction to spam from acquaintance

It often happens that I receive an email like this: From: acquaintance@herbal-viagra.com To: me@domain.com Hi, me@domain.com -- Check this out: http://herbal-viagra.com -- ...
0
votes
1answer
61 views

Does a 'mailto:' hyperlink spoil any preceding email obfuscation efforts in PDF?

Assume there is a PDF file which contains the example@example.com email address as an image (the classic obfuscation method). However, what if this image is made clickable with a hyperlink which ...
1
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2answers
102 views

How to prevent phishing mails from being successful? [duplicate]

I'd like to know what the best methods are to prevent success of phising mails. This question contains the following subquestions: What are the best ways to determine incoming phising mails (on a ...
6
votes
1answer
1k views

How to reject e-mails spoofing your own domain targeting your employees at Office365?

One problem Office365 users deal with is that an external SMTP server can spoof the domain of an organization and send e-mails to the domain users; where the e-mails appear to be from employees of the ...