<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
</head>
<body dir="ltr">
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
Hello,
<div><br>
</div>
<div>I hope everyone is doing well!</div>
<div><br>
</div>
<div>Below is the entry for today.</div>
<div><br>
</div>
<div>12/08/2021 - Diary entry #407:</div>
<div><br>
</div>
<blockquote style="margin-top:0;margin-bottom:0">
<div>
<p>Glupteba, mentioned in our Daily Diaries #308 and #333, is a multi-purpose threat that doubles as a botnet and backdoor. Glupteba is known to steal credentials, cookies, mine cryptocurrencies on infected devices, and deploy proxy components targeting Windows
and IoT devices worldwide.</p>
<p><br>
</p>
<p>It's common for malware to use public cloud services such as AWS S3, Google Docs, and even YouTube videos, to store C2 addresses used by botnet on infected devices. This technique allows malware to bypass common firewall rules, as those services are hardly
blocked, and connecting to those services can be viewed as trusted for some security solutions.</p>
<p><br>
</p>
<p>Since Google's products are abused by threats like Glupteba, the company took actions over the past year to terminate around 63 million Google Docs that were observed to have distributed the malware, alongside 1,183 Google Accounts, 908 Cloud Projects, and
870 Google Ads accounts associated with Glupteba distribution.</p>
<p><br>
</p>
<p>Besides law enforcement agencies, private sector companies are also making efforts to disrupt threats' infrastructures. Those actions force threat actors to change their tactics, suffering temporary setbacks in their operations. Unfortunately, Glupteba is
using blockchain technology as a resiliency mechanism, allowing the botnet to recover more quickly from disruptions.</p>
</div>
</blockquote>
<div><br>
</div>
Kind Regards,<br>
</div>
<div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div id="Signature">
<div>
<div></div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
<table style="font-size:medium; font-family:"Times New Roman"">
<tbody>
<tr>
<td style="width:180px" align="left">
<table width="120" align="left">
<tbody>
<tr>
<td colspan="3" align="center"><a href="https://www.appgate.com/" target="_blank" rel="noopener noreferrer" style="margin:0px"><img style="margin:0px" width="120" height="30" src="https://d3aafpijpsak2t.cloudfront.net/images/Signature/logo@2x.png"></a></td>
</tr>
<tr>
<td colspan="3" align="center"> </td>
</tr>
<tr>
<td width="37%" align="center"><a href="https://www.linkedin.com/company/appgate-security/" target="_blank" rel="noopener noreferrer" style="margin:0px"><img style="margin:0px" width="18" height="18" src="https://d3aafpijpsak2t.cloudfront.net/images/Signature/likedin@2x.png"></a></td>
<td width="28%"><a href="https://twitter.com/AppgateSecurity" target="_blank" rel="noopener noreferrer" style="margin:0px"><img style="margin:0px" width="20" height="18" src="https://d3aafpijpsak2t.cloudfront.net/images/Signature/twitter@2x.png"></a></td>
<td width="35%"><a href="https://www.youtube.com/channel/UC-8GvxcZbm-R3EJNl8jYjiQ" target="_blank" rel="noopener noreferrer" style="margin:0px"><img style="margin:0px" width="26" height="18" src="https://d3aafpijpsak2t.cloudfront.net/images/Signature/youtube@2x.png"></a></td>
</tr>
</tbody>
</table>
<p style="margin-top:0px; margin-bottom:0px"> </p>
</td>
<td colspan="2" rowspan="2" style="width:350px">
<p style="color:rgb(12,12,12); font-size:13px; font-family:Arial,Helvetica,sans-serif; margin-top:0px; margin-bottom:0px">
<strong>Felipe Tarijon de Almeida</strong><br>
Malware Analyst<br>
<strong>Appgate</strong></p>
<p style="color:rgb(12,12,12); font-size:13px; font-family:Arial,Helvetica,sans-serif; margin-top:0px; margin-bottom:0px">
E:<span style="margin:0px"> <a href="mailto:felipe.tarijon@appgate.com" title="mailto:felipe.tarijon@appgate.com">
felipe.tarijon@appgate.com</a></span><br>
O:<span> </span><span style="margin:0px; background-color:white">+55 11 97467 9549</span></p>
</td>
</tr>
</tbody>
</table>
<br>
</div>
</div>
</div>
</div>
</body>
</html>