Trojan Viruses
                     TROJAN
VIRUSES:
CUNNING DIGITAL 
FOES
@infosect ra in
 
www. infosectra in .com
 
TROJAN
VIRUSES
A Trojan virus, or Trojan horse, poses as
legitimate software but harbors 
malicious  code. Once triggered, it can 
steal data,
install additional malware, or 
disrupt  your computer's operation.
@infosect ra in
 
# learntor i s
e  
www. infosectra in .com
 
HOW TROJAN
SNEAK IN
Trojan viruses spread via email 
attachments,  infected websites, or peer-
to-peer networks.
When you open an infected file, the 
Trojan  silently installs itself on your 
computer.
Once in, it executes malicious code, 
posing  a  threat to your system.
@infosect ra in
 
# learntor i s
e  
www. infosectra in .com
 
TYPES OF TROJAN
TRICKS
1. Backdoor Trojans: Craft hidden 
entrances  for remote system control.
2. Downloader Trojans: Covertly fetch and 
install  more malware.
3. Destructive Trojans: Target files, causing
widespread damage and potential data 
loss.
0 4  Remote Access Trojans (RATs): Gift 
attackers  complete system control for 
data theft
and monitoring.
@infosect ra in
 
# learntor i s
e  
www. infosectra in .com
 
SPOTTING TROJAN
TRICKS SIGNS
1. Sluggish Showdown: Computer 
performance  is slowing unexpectedly.
2. Pop-Up Carnival: Strange ads and pop-
ups  disrupting your digital ride.
3. Browser Carousel Spin: Homepage or 
search  engine changes without consent.
0 4  Software Sneak-Ins: Programs that you 
didn't  ask for appear on your computer.
@infosect ra in
 
# learntor i s
e  
www. infosectra in .com
 
0 5  mDaytsate Driiosuasplpye vaarnsi sAhcet:s P. ersonal 
information
0 6  Network Oddities: Unusual activity 
on  your network.
@infosect ra in
 
# learntor i s
e  
www. infosectra in .com
 
DEFENDING YOUR
TROJAN CASTLE
1. Antivirus Shield: Install and update 
antivirus  software to thwart Trojan plans.
2. Attachment Vigilance: Open email 
attachments  cautiously; scan them before 
unveiling.
3. Webs of Caution: Stay away from 
suspicious  websites hosting Trojan traps.
0 4  Peer-to-Peer Pause: Avoid the malware
breeding grounds of peer-to-peer file 
sharing.
@infosect ra in
 
# learntor i s
e  
www. infosectra in .com
 
0 5  bCyl eraemn oSvwienegp u: nRuesgeudl aprrloy gdreacmlust.ter your 
system
0 6  Update Everything: Keep your 
computer  programs up to date to fix 
any holes that  Trojans might use.
@infosect ra in
 
# learntor i s
e  
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