Should I block it?
No, this file is 100% safe to run.
 
Additional versions
 
     
    
        tlntsvr.exe
Telnet by Microsoft
| Version:    | 5.1.2600.5512 (xpsp.080413-0852) | 
| MD5:    | 65bf170815c0df302be038fd8891c722 | 
| SHA1:    | f69106dd7877b2f861e85b6e2cf010c6ca4b19e5 | 
| SHA256:    | b8b455fbf28536ac5a580c8447fe00119706a68fdf3c40ce86accedf693ad387 | 
This is a Windows system installed file with Windows File Protection (WFP) enabled.
What is tlntsvr.exe?
Telnet is a network protocol used on the Internet or local area networks to provide a bidirectional interactive text-oriented communication facility using a virtual terminal connection. User data is interspersed in-band with Telnet control information in an 8-bit byte oriented data connection over the Transmission Control Protocol (TCP).
Overview
tlntsvr.exe runs as a service under the name Telnet (TlntSvr) within the local user context. This version is installed on Windows XP.
Details
| File name: | tlntsvr.exe | 
| Publisher: | Microsoft Corporation | 
| Product name: | Telnet | 
| Description: | Microsoft® Windows® Operating System | 
| Typical file path: | C:\Windows\System32\tlntsvr.exe | 
| File version: | 5.1.2600.5512 (xpsp.080413-0852) | 
| Product version: | 5.1.2600.5512 | 
| Size: | 72.5 KB (74,240 bytes) | 
| Digital DNA | 
| PE subsystem: | Windows GUI | 
| Entropy: | 5.911052 | 
| File packed: | No | 
| Code language: | Microsoft Visual C++ | 
| .NET CLR: | No | 
More details
Behaviors
Services
Runs under 'SYSTEM\CurrentControlSet\Services' by the Service Controller (services.exe)
- 'TlntSvr'  (Telnet)
 
- 'TlntSvr' 
 
Distribution by Windows OS
| OS version | distribution | 
| Microsoft Windows XP | 
95.00% | 
 | 
| Windows XP Professional | 
4.50% | 
 | 
| Windows Server 2003, Standard Edition | 
0.50% | 
 | 
Distribution by country
United States installs about 35.52% of Telnet.
Distribution by PC manufacturer
| PC Manufacturer | distribution | 
| Dell | 
38.67% | 
 | 
| Intel | 
16.00% | 
 | 
| Toshiba | 
8.00% | 
 | 
| Compaq | 
8.00% | 
 | 
| American Megatrends | 
7.33% | 
 | 
| Hewlett-Packard | 
6.00% | 
 | 
| GIGABYTE | 
5.33% | 
 | 
| Sahara | 
2.67% | 
 | 
| Gateway | 
2.67% | 
 | 
| Acer | 
1.33% | 
 | 
| Lenovo | 
1.33% | 
 | 
| ASUS | 
1.33% | 
 | 
| Sony | 
1.33% | 
 |