Information Systems Security
Spam Mail Analysis
Spam
Any email which is unsolicited or seems to be coming from an unknown dubious looking sender is referred to as spam. More often than not, spam is the major attack source for many phishing scams, viruses, and many other offensive and harmful content. The loss from spam could be as little as just a few minutes to read to the entire data in the computer. The spam often tends to increase the business costs for the receiver in any form. However, there are many things one can do to protect themselves against spam. The person has to have the knowledge on both avoiding and dealing with the spam messages. It is always better if the user is educated enough to understand the implications of spam mail. Apart from that, there are two trusted and tested ways to be safe from spam attacks
Protecting the computer
Most of attacks that the spam messages bring are mainly targeting the computer and the data in it. These attacks may vary form malware attacks such as virus injection to ransomware which blackmail the users to give up money. The best way to go about is to update the anti-virus software and firewall setting regularly. This could prevent almost 90% of spam attacks. One can set this processes to update on their own whenever there is an update available from the manufacturer. It is better to shut down the computer when not in use. The plugins of the browsers should also be updated regularly and the users should make sure that the updates are coming from the browser owner.
Protecting the email.
As we know, the main source of spam is through the email and setting up defensive strategies to the mail boxes would help a lot in dealing with the spam mails. One of the best defensive strategies is to delete the spam mail without opening it in the first place. One could use spam filters to their mailboxes which blocks the spam even before it reaches the inbox. The user should try and use an alphanumeric email id which would exclude them from most chain emails. The preview pane should also be disabled as it might allow the hackers from getting their code in.
References
Spector, L. (2016, June 7). 5 ways to stop spam from invading your email | PCWorld. Retrieved April 28, 2018, from https://www.pcworld.com/article/3072435/data-center-cloud/5-ways-to-stop-spam-from-invading-your-email.html
Spykerman, M. (2016). Typical spam characteristics. Retrieved April/May, 2018, from http://www.spamhelp.org/articles/Spam-filter-article.pdf
Sample Spam Email
Delivered-To: anthatiram.09@gmail.com
Received: by 10.236.140.144 with SMTP id b16csp1552950pjo;
Sat, 22 June2018 00:28:01 -0700 (PDT)
X-Google-Smtp-Source: AB8JxZowBuCzPbRxHOiNzo/hVfQitfdggZKp2osMzpqBu6Ay4w8HNjl5ls3wtS3bC7BYTabAta6P
X-Received: by 2002: a50:d1c5:: with SMTP id i5-v6mr1815040edg.231.1524900481654;
Sat, 22 June 2018 00:28:01 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; t=1524900481; cv=none;
d=google.com; s=arc-20160816;
b=RVuFY6qKKy9VT/8kTHyhkw9mzcBQOeIr86QAkI9nrU15f8o+SM3Cv+yZTRl5IgoFgB
CQxXtaLYudzVfF/iYpSw/2DB6NNiWZrrQ1LBotdttBxWhDcaLn6LtqCEo5yjfBDq5FLO
YbhVotK7LM84RqyoLLd7KwruYrUqXUtTnYE2eZtT7SlVMyGa2qSAqAqgZHfyjOkZSw2D
SbjfVF9EPjPaHU7tegflF6gvyuBEpiAEm/lzFK4leHW5oqJZTUGose4jl3LxusMwCvvQ
3MtVf8n58ETo7BA0RDFknbVtbB5ccFErQ7yYa/Cpq8cLOFUXaKwW1EDAnclRqHG3OTow
Y6kQ==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
h=mime-version:content-transfer-encoding:subject:to:from:message-id
:list-unsubscribe:sender:errors-to:date:arc-authentication-results;
bh=Qxi4/WNutkX04p0mvxEJy4JdhEz7P5XP+hgOshnGLSk=;
b=nDijadcY/Q7PI5Iq+3vukKjEZSbtKQYDOSwfdZg2C6/2eTziMlshLN3bLZHz5S0F7p
xGpGXYh9b2YVy0hAmXLfT1vRxtXnmnvL8SI11dyFoLhGafv2jKgY3+XuTOp8Mpd5UNit
fNCYhXpCxcuQwHNMLcimE8fYmYVZ1JDgHOnkgkL4ysMrcLfqK0ULNEFeCMbRpurtuWmE
DDj/V0tfW8HGH8Wo1gxFZ2WFVo2tLF8XHiB8yCgHumbsLePDflFnvnyReN/PKxL5LMWp
1pit3dCQxRlioD5Eiiu3TNrFQHxlWpr0Lms+vvAhzlMLRjEH7rDNaLxyJL3PSydrN749
ARC-Authentication-Results: i=1; mx.google.com;
spf=pass (google.com: domain of bounces+c12557i2043465835b53200u31837636+anthatiram.09=gmail.com@cc1l45e3412k2k.rb0ca-bc99.snoprc.cf designates 2a00:4c84:b0ca:bc99::1 as permitted sender) smtp.mailfrom=bounces+c12557i2043465835b53200u31837636+anthatiram.09=gmail.com@cc1l45e3412k2k.rb0ca-bc99.snoprc.cf;
dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=cc1l45e3412k2k.wb0ca-bc99.snoprc.cf
Return-Path: <bounces+c12557i2043465835b53200u31837636+anthatiram.09=gmail.com@cc1l45e3412k2k.rb0ca-bc99.snoprc.cf>
Received: from wb0ca-bc99.snoprc.cf (2a004c84b0cabc990000000000000001.snoprc.cf. [2a00:4c84:b0ca:bc99::1])
by mx.google.com with ESMTPS id d55-v6si3544072eda.68.2018.04.28.00.28.00
for <anthatiram.09@gmail.com>
(version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
Sat, 22 June 2018 00:28:01 -0700 (PDT)
Received-SPF: pass (google.com: domain of bounces+c12557i2043465835b53200u31837636+anthatiram.09=gmail.com@cc1l45e3412k2k.rb0ca-bc99.snoprc.cf designates 2a00:4c84:b0ca:bc99::1 as permitted sender) client-ip=2a00:4c84:b0ca:bc99::1;
Authentication-Results: mx.google.com;
spf=pass (google.com: domain of bounces+c12557i2043465835b53200u31837636+anthatiram.09=gmail.com@cc1l45e3412k2k.rb0ca-bc99.snoprc.cf designates 2a00:4c84:b0ca:bc99::1 as permitted sender) smtp.mailfrom=bounces+c12557i2043465835b53200u31837636+anthatiram.09=gmail.com@cc1l45e3412k2k.rb0ca-bc99.snoprc.cf;
dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=cc1l45e3412k2k.wb0ca-bc99.snoprc.cf
Date: Sat, 22 June 2018 07:23:56 GMT
Return-Path: bounces+c12557i2043465835b53200u31837636+anthatiram.09=gmail.com@cc1l45e3412k2k.rb0ca-bc99.snoprc.cf
Errors-To: bounces+c12557i2043465835b53200u31837636+anthatiram.09=gmail.com@cc1l45e3412k2k.rb0ca-bc99.snoprc.cf
Sender: admin@cc1l45e3412k2k.rb0ca-bc99.snoprc.cf
List-Unsubscribe: <mailto:unsubscribe+c12557i2043465835b53200u31837636+anthatiram.09=gmail.com@cc1l45e3412k2k.rb0ca-bc99.snoprc.cf>
Message-Id: <4511efee389d3b604c9412e917f4da@cc1l45e3412k2k.rb0ca-bc99.snoprc.cf>
From: ZippyLoan - Loan Department <Uneasy.loan.2.gmfe.53200@cc1l45e3412k2k.wb0ca-bc99.snoprc.cf>
To: anthatiram.09@gmail.com
Subject: Get up to $15,000 as soon as tomorrow
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3DUTF-8">
=20
=09<title>Zippy Loan</title>
</head>
<body><table align=3D"center" border=3D"0" cellpadding=3D"0" cellspacing=3D=
"0" width=3D"640"><tbody><tr><td><table align=3D"center" bgcolor=3D"#fff" b=
order=3D"0" cellpadding=3D"0" cellspacing=3D"0" style=3D"border:none; borde=
r-collapse: collapse; width:640px; font-family:Arial, Helvetica, sans-serif=
" width=3D"640"><tbody><tr><td style=3D"text-align:center; font-size:13px; =
color:blue; height:20px; padding:5px 0px;">Borrow up to $15,000 by tomorrow=
</td></tr><tr><td><table border=3D"0" cellpadding=3D"0" cellspacing=3D"0" s=
tyle=3D"width:640px; border:1px solid #ddd; border-collapse:collapse; margi=
n:0; padding:0; text-align:center; background:white;" width=3D"640"><tbody>=
<tr><td><a href=3D"http://cc1l45e3412k2k.wb0ca-bc99.snoprc.cf/t/cxM3lAacdAA=
CNIeRaAQAAAFeiiissfQzwAA/g/IJ0"><img alt=3D"" src=3D"http://cc1l45e3412k2k.=
wb0ca-bc99.snoprc.cf/files-5adbe0e9ce200/2/1/zippy-4-bg.png" width=3D"640" =
height=3D"690" /></a></td></tr></tbody></table></td></tr></tbody></table><t=
able border=3D"0" cellpadding=3D"0" cellspacing=3D"0" style=3D"width:640px;=
border-collapse:collapse" width=3D"640"><tbody><tr><td align=3D"center" he=
ight=3D"28" style=3D"width:640px; color:#000000; font-size:12px; font-famil=
y: tahoma, helvetica, arial, sans-serif; text-decoration: none; ;" width=3D=
"640"><img alt=3D"" src=3D"http://cc1l45e3412k2k.wb0ca-bc99.snoprc.cf/files=
-5adbe0e9ce200/2/1/safety.gif" width=3D"15" height=3D"12" />ZippyLoan uses =
256-bit SSL encryption to ensure your information is safe.</td></tr></tbody=
></table><table border=3D"0" cellpadding=3D"0" cellspacing=3D"0" width=3D"6=
40"><tbody><tr><td align=3D"center" style=3D"width:640px; font-family: taho=
ma, helvetica, arial, sans-serif; font-size:12px; text-align:center; color:=
#aaaaaa;" width=3D"640"><br /><a href=3D"http://cc1l45e3412k2k.wb0ca-bc99.s=
noprc.cf/t/cxM3lAacdAACNIeRaAgAAAFeiiissfQzwAA/g/IBz" style=3D"color:#aaaaa=
a;">Unsubscribe</a> or write to:<br />ZippyLoan | 220 Meridian Blvd., Suite=
#01409, Minden, NV, 89429, USA</td></tr></tbody></table></td></tr></tbody>=
</table><p> </p>
<p> </p>
<p> </p>
<p><a href=3D"http://cc1l45e3412k2k.wb0ca-bc99.snoprc.cf/t/cxM3lAacdAACNIeR=
aAwAAAFeiiissfQzwAA/g/Jn"><img alt=3D"" src=3D"http://cc1l45e3412k2k.wb0ca-=
bc99.snoprc.cf/files-5adbe0e9ce200/2/1/u.png" width=3D"291" height=3D"23" /=
></a></p><img alt=3D"" width=3D"1" height=3D"1" src=3D"http://cc1l45e3412k2=
k.wb0ca-bc99.snoprc.cf/t/cxM3lAacdAACNIeRaBAAAAFeiiissfQzwAA/p/loan.2.gmfe.=
53200.gif"></body>
</html>
2 | Page