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winst.exe

winsigntool

OPEN.co., ltd

The application winst.exe by OPEN.co., ltd has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
OPN  (signed by OPEN.co., ltd)

Product:
winsigntool

Description:
winsigntool EXE

Version:
1.0.0.1

MD5:
4fdec23c708dcffcd4e6567c5a00221b

SHA-1:
74f1d5fc77d936f3d66eadebfc37e4bd836c6757

SHA-256:
4dce13031268838f36212aea918e95763c182c9d68db2128f3efd426d9543311

Scanner detections:
1 / 68

Status:
Adware

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:
4/26/2024 3:59:01 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.OPENco (M)
15.10.29.3

File size:
1.9 MB (1,949,208 bytes)

Product version:
1.0.0.1

Copyright:
OPN All rights reserved.

Original file name:
winst.exe

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\roaming\winsigntool\winst.exe

Digital Signature
Signed by:
OPEN.co., ltd

Authority:
Thawte, Inc.

Valid from:
12/24/2012 9:00:00 AM

Valid to:
2/23/2015 8:59:59 AM

Subject:
CN="OPEN.co., ltd", O="OPEN.co., ltd", L="Gangnam-gu,", S=Seoul, C=KR

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
548AAD77F8523322625F42520037EA48

File PE Metadata
Compilation timestamp:
2/28/2013 4:26:27 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
49152:yUiIq3sjVv4k8aFGDleo8dmwLOV/RCb+teEPaxIhWP5Twaw4XBUImIjIm7fmsp6D:vq3sjD8aFGso8dmwu/Rw+tHTWP5Tnw4s

Entry address:
0x1149FA

Entry point:
E8, 79, 8B, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 51, 53, 8B, 45, 0C, 83, C0, 0C, 89, 45, FC, 64, 8B, 1D, 00, 00, 00, 00, 8B, 03, 64, A3, 00, 00, 00, 00, 8B, 45, 08, 8B, 5D, 0C, 8B, 6D, FC, 8B, 63, FC, FF, E0, 5B, C9, C2, 08, 00, 58, 59, 87, 04, 24, FF, E0, 8B, FF, 55, 8B, EC, 51, 51, 53, 56, 57, 64, 8B, 35, 00, 00, 00, 00, 89, 75, FC, C7, 45, F8, 68, 4A, 51, 00, 6A, 00, FF, 75, 0C, FF, 75, F8, FF, 75, 08, E8, D4, 00, 02, 00, 8B, 45, 0C, 8B, 40, 04, 83, E0, FD, 8B, 4D, 0C, 89, 41, 04, 64, 8B, 3D...
 
[+]

Entropy:
6.4750

Code size:
1.3 MB (1,328,128 bytes)

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