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steelcut.expext.dll

Steel Cut

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module steelcut.expext.dll by Steel Cut has been detected as adware by 9 anti-malware scanners. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages.
Publisher:
Steel Cut  (signed and verified)

Version:
1.0.5587.25405

MD5:
62da81427c30cf4dd666511c5800e20a

SHA-1:
9c163ef0001b1cf26539fe2589450adede553b59

SHA-256:
3b454952fca201fe28c999cd0a10ab874d5df55e94872bb29c6bde5daf191fce

Scanner detections:
9 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
5/1/2024 9:10:10 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
Generic
2016.0.3133

Baidu Antivirus
Adware.MSIL.BrowseFox
4.0.3.15421

Bkav FE
W32.HfsAdware
1.3.0.6379

Dr.Web
Trojan.Yontoo.1734
9.0.1.05190

ESET NOD32
MSIL/BrowseFox.G potentially unwanted application
7.0.302.0

F-Prot
W32/S-5d625b95
v6.4.7.1.166

IKARUS anti.virus
PUA.MSIL.BrowseFox
t3scan.1.8.9.0

K7 AntiVirus
Adware
13.202.15655

Reason Heuristics
Threat.Yontoo.SteelCut
15.4.21.3

File size:
502.7 KB (514,800 bytes)

Product version:
1.0.5587.25405

Original file name:
SteelCut.ExpExt2015041922.dll

File type:
Dynamic link library (Win32 DLL)

Language:
Language Neutral

Common path:
C:\Program Files\steel cut\bin\plugins\steelcut.expext.dll

Digital Signature
Signed by:
Steel Cut

Authority:
VeriSign, Inc.

Valid from:
1/11/2015 10:00:00 AM

Valid to:
1/12/2016 9:59:59 AM

Subject:
CN=Steel Cut, O=Steel Cut, L=San Diego, S=California, C=US

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:
0ABB826DEFFE019B3B61D91322DE992A

File PE Metadata
Compilation timestamp:
4/20/2015 8:07:11 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
12288:z68x1TrGwuyE+e8qqMBVcJ7JsTkH961Mip:z64buJuqqMBVcJJsTkH9qJp

Entry address:
0x7D87A

Entry point:
FF, 25, 00, 20, 40, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

Entropy:
6.9732

Developed / compiled with:
Microsoft Visual C# / Basic .NET

Code size:
494.5 KB (506,368 bytes)

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