Update Date
01/21/2024

Class: Hoax

A hoax is a fake warning about a virus or other piece of malicious code. Typically a hoax takes the form of an e-mail message warning the reader of a dangerous new virus and suggesting that the reader pass the message on. Hoaxes cause no damage in themselves, but their distribution by well-meaning users often causes fear and uncertainty. Most anti-virus vendors include hoax information on their web sites and it is always advisable to check before forwarding warning messages.

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Platform: Win32

Win32 is an API on Windows NT-based operating systems (Windows XP, Windows 7, etc.) that supports execution of 32-bit applications. One of the most widespread programming platforms in the world.

Family: Hoax.Win32.ArchSMS

No family description

Examples

5929E735A3284CF566FF13B518B9FD5B
0A35F1535E68C33DB2CA340999A5A7B0
01BE5CE0E5B032E373B98BB478BCCAA6
1C4841240634652F32ED248995F903E3
20332BB5FA71B1A998CA337AA23DE5A6

Tactics and Techniques: Mitre*

TA0005
Defense Evasion
The adversary is trying to avoid being detected.

Defense Evasion consists of techniques that adversaries use to avoid detection throughout their compromise. Techniques used for defense evasion include uninstalling/disabling security software or obfuscating/encrypting data and scripts. Adversaries also leverage and abuse trusted processes to hide and masquerade their malware. Other tactics’ techniques are cross-listed here when those techniques include the added benefit of subverting defenses.
T1036
Masquerading
Adversaries may attempt to manipulate features of their artifacts to make them appear legitimate or benign to users and/or security tools. Masquerading occurs when the name or location of an object, legitimate or malicious, is manipulated or abused for the sake of evading defenses and observation. This may include manipulating file metadata, tricking users into misidentifying the file type, and giving legitimate task or service names.

Renaming abusable system utilities to evade security monitoring is also a form of Masquerading.(Citation: LOLBAS Main Site) Masquerading may also include the use of Proxy or VPNs to disguise IP addresses, which can allow adversaries to blend in with normal network traffic and bypass conditional access policies or anti-abuse protections.

* © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.

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