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guangsu_setup.exe

光速输入法2.8正式版

Shanghai Gaoxin Computer System Co.,ltd

The application guangsu_setup.exe by Shanghai Gaoxin Computer System Co.,ltd has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from down.guangsu.cn.
Publisher:
Shanghai Gaoxin Computer System Co.,ltd  (signed and verified)

Product:
光速输入法2.8正式版

Description:
光速输入法安装程序

Version:
2.8.1.14

MD5:
754fe01648735f92ecd254430720e7f2

SHA-1:
8aafda359f79cd9b61d0500035caf603d0fecada

SHA-256:
e8ae786b36eb025546b7817e4e6f9533f5cd14372ea55038d5b6565f6eaf17c5

Scanner detections:
1 / 68

Status:
Potentially unwanted

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Analysis date:
4/25/2024 4:26:05 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
17.2.7.19

File size:
13.6 MB (14,303,608 bytes)

Product version:
2.8.1.1120

Copyright:
http://www.guangsu.cn/

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\downloads\guangsu_setup.exe

Digital Signature
Signed by:
Shanghai Gaoxin Computer System Co.,ltd

Authority:
VeriSign, Inc.

Valid from:
5/7/2013 8:00:00 AM

Valid to:
5/7/2016 7:59:59 AM

Subject:
CN="Shanghai Gaoxin Computer System Co.,ltd", OU=IT, OU=Digital ID Class 3 - Microsoft Software Validation v2, O="Shanghai Gaoxin Computer System Co.,ltd", L=Shanghai, S=Shanghai, C=CN

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
3252B61CBBBA434FC4C89A24F5ED7D30

File PE Metadata
Compilation timestamp:
6/9/2013 3:32:15 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

Entry address:
0x3370

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, A8, 73, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, B8, 3C, 42, 00, E8, FE, 24, 00, 00, 53, 68, 60, 01, 00, 00, A3, C0, 3B, 42, 00, 8D, 44, 24, 38, 50, 53, 68, 3B, 74, 40, 00, FF, 15, 58, 71, 40, 00, 68, 30, 74, 40, 00, 68, C0, 33, 42, 00, E8, F0, 23, 00, 00, FF, 15, B0, 70, 40, 00, 50, BF, 00, 90, 42, 00, 57, E8, DE, 23, 00, 00...
 
[+]

Entropy:
7.9778

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file guangsu_setup.exe has been seen being distributed by the following URL.

http://down.guangsu.cn/Guangsu_Setup.exe

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