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operasetup.exe

The executable operasetup.exe has been detected as malware by 9 anti-virus scanners. This is a setup and installation application, however the file is not signed with an authenticode signature from a trusted source. The file is most likely infected with the Neshta virus, a Russian virus that gathers system information and send it to a remote command and cotrol server. The file has been seen being downloaded from opera.ar.softonic.com.
MD5:
f18137e3d3b48acb973fbda5cc6cc8a8

SHA-1:
3c9c799ce048126810f3cef2d6012db3ac0be29b

SHA-256:
70ed28437206a1ecade89ac5fb96955cacd6ced5bc56c2b9be7eb0a8ce63f8a5

Scanner detections:
9 / 68

Status:
Malware

Explanation:
Infected with the direct-infection Neshta file infector virus.

Analysis date:
12/28/2024 12:38:44 PM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:Apanas [Trj]
160518-2

AVG
Worm/Delf.FF
2015.0.4591

Dr.Web
Win32.HLLP.Neshta
9.0.1.05190

Emsisoft Anti-Malware
Win32.Neshta
11.5.0.6191

ESET NOD32
Win32/Neshta.A virus
8.0.319.0

F-Prot
W32/HLLP.41472
4.6.5.141

Kaspersky
Virus.Win32.Neshta
15.0.0.562

Microsoft Security Essentials
Threat.Undefined
1.225.2254.0

VIPRE Antivirus
Threat.4276445
50690

File size:
748.8 KB (766,744 bytes)

File type:
Executable application (Win32 EXE)

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

File PE Metadata
Compilation timestamp:
6/20/1992 1:22:17 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:O0VR06Oo2p0OiIEZSqrHn+sObMLrPBIpcSvPuNWy0PoGVQPmB6ZZE/A/Vq:OJxZ/EZSq71rXGNvPj/iPjEIA

Entry address:
0x80E4

Entry point:
55, 8B, EC, 83, C4, E0, 33, C0, 89, 45, E0, 89, 45, E8, 89, 45, E4, 89, 45, EC, B8, 54, 80, 40, 00, E8, 12, BE, FF, FF, 33, C0, 55, 68, 20, 82, 40, 00, 64, FF, 30, 64, 89, 20, B8, A8, 91, 40, 00, B9, 0B, 00, 00, 00, BA, 0B, 00, 00, 00, E8, 5C, EF, FF, FF, B8, B4, 91, 40, 00, B9, 09, 00, 00, 00, BA, 09, 00, 00, 00, E8, 48, EF, FF, FF, B8, C0, 91, 40, 00, B9, 03, 00, 00, 00, BA, 03, 00, 00, 00, E8, 34, EF, FF, FF, B8, DC, 91, 40, 00, B9, 03, 00, 00, 00, BA, 03, 00, 00, 00, E8, 20, EF, FF, FF, A1, 10, 92, 40...
 
[+]

Entropy:
7.6983

Developed / compiled with:
Microsoft Visual C++

Code size:
29 KB (29,696 bytes)

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

http://opera.ar.softonic.com/.../3tjQyeLV3cjDp-Hw3sCixsiGa5-fmqOIpZ-hlZw=

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