Threat Database Trojans Trojan.ArchSMS

Trojan.ArchSMS

By CagedTech in Trojans
Published:
Last updated:

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 1,018
First Seen: September 21, 2011
Last Seen: October 24, 2025
OS(es) Affected: Windows

The detection of Trojan.ArchSMS on your system indicates a potential security threat that requires immediate attention. This report aims to provide you with a comprehensive understanding of the threat, its operations, symptoms, and most importantly, steps to remove it from your system.

What Is Trojan.ArchSMS?

Trojan.ArchSMS is identified as a Trojan-type threat, which is a broad category of malware designed to deceive users into installing it on their systems. Unlike viruses, Trojans do not replicate themselves but can cause significant harm by stealing sensitive information, installing additional malware, or allowing unauthorized access to the infected system. The name "Trojan.ArchSMS" suggests it may have capabilities related to SMS or text messaging, but without specific details, it's crucial to approach its removal with a general understanding of Trojan threats.

How Trojan.ArchSMS Operates

Trojan.ArchSMS, like other Trojans, operates by disguising itself as legitimate software or piggybacking on legitimate programs to gain entry into a system. Once installed, it can perform a variety of malicious activities, including but not limited to, data theft, spyware functionalities, or acting as a backdoor for other malware. The exact operations of Trojan.ArchSMS can vary, but its primary goal is to compromise the security and integrity of the infected system for the benefit of the attackers.

Symptoms of Infection

Symptoms of a Trojan infection can be subtle and may not always be immediately apparent. Common indicators include unexpected changes to system settings, appearance of unfamiliar programs or icons, unusual network activity, slowed system performance, or frequent crashes. In some cases, Trojans may also trigger security software alerts, though they are designed to evade detection. Being vigilant about these symptoms can help in early detection and removal of the threat.

How to Remove Trojan.ArchSMS

  1. Boot your system into Safe Mode with Networking to limit the malware's ability to interfere with the removal process. This mode allows you to use the internet to download removal tools if necessary.
  2. Perform a full scan of your system using a reputable anti-malware tool such as SpyHunter. Ensure your anti-malware software is updated to the latest version for the best detection and removal capabilities.
  3. Uninstall suspicious programs that you do not recognize or that were installed around the time the malware was detected. Be cautious and only remove programs you are certain are not needed.
  4. Reset your web browsers (Chrome, Firefox, Edge, etc.) to their default settings. This can help remove any malicious extensions or settings changes made by the Trojan.
  5. After completing the above steps, reboot your system and then perform another full scan with your anti-malware tool to ensure that all traces of the malware have been removed.

Conclusion

Removing Trojan.ArchSMS requires a methodical approach to ensure all components of the malware are eliminated from your system. By following the steps outlined above, you can effectively remove the threat and restore your system's security. Remember, prevention is key; always be cautious when downloading software, avoid suspicious links or emails, and keep your security software up to date to protect against future infections.

SpyHunter Detects & Remove Trojan.ArchSMS

File System Details

Trojan.ArchSMS may create the following file(s):
# File Name MD5 Detections
1. start.exe 262bea6bc12282cde3fb4010dc9b31f2 26
2. OSFirewall.exe 494cc484233a807b4fd93bf2c90a2741 13
3. update.exe 045578eb6f48410a93e040ecc0908c2e 1
More files

Registry Details

Trojan.ArchSMS may create the following registry entry or registry entries:
Regexp file mask
%APPDATA%\Microsoft\OSFirewall.exe

Analysis Report

General information

Family Name: Trojan.ArchSMS
Signature status: Root Not Trusted

Known Samples

MD5: 977cb302f626cec8c61597e651345820
SHA1: 527689778406f5db5b5eb92aa2ce0d46346f601a
SHA256: 7F37FFB54F6CA3501834D517CF513890B528BF2C90830250469B23F7AEC3AB03
File Size: 277.98 KB, 277976 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have debug information
  • File doesn't have exports table
  • File doesn't have relocations information
  • File is 32-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is Native application (NOT .NET application)
  • File is not packed
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
Show More
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Icons

Digital Signatures

Signer Root Status
BERNEX APLICACIONES SL Go Daddy Class 2 Certification Authority Root Not Trusted

Files Modified

File Attributes
c:\users\user\appdata\local\temp\nsc5f49.tmp Generic Write,Read Attributes
c:\users\user\appdata\local\temp\nsk59ba.tmp\logo.bmp Generic Write,Read Attributes
c:\users\user\appdata\local\temp\nsk59ba.tmp\modern-wizard.bmp Generic Write,Read Attributes
c:\users\user\appdata\local\temp\nsk59ba.tmp\nsdialogs.dll Generic Write,Read Attributes
c:\users\user\appdata\local\temp\nsk59ba.tmp\nsisdl.dll Generic Write,Read Attributes
c:\users\user\appdata\local\temp\nsk59ba.tmp\system.dll Generic Write,Read Attributes

Windows API Usage

Category API
Network Winsock2
  • WSAStartup
Network Winsock
  • closesocket
  • connect
  • inet_addr
  • socket