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mailruupdater.exe

The executable mailruupdater.exe has been detected as malware by 40 anti-virus scanners. It is set to automatically start when a user logs into Windows via the current user run registry key under the display name ‘MailRuUpdater’. 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.
MD5:
4837101b56bb9f8ffa9fce4941c7e3e5

SHA-1:
04612404f313934c05b4b596f909941721e30366

SHA-256:
8ad0c56bbf12109ab291a92243ad5611ccee401969fece2c3798e25992cead02

Scanner detections:
40 / 68

Status:
File is infected by a Virus

Explanation:
The file is infected by a polymorphic file infector virus.

Analysis date:
4/16/2024 10:59:31 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Win32.Neshta.C
928

Agnitum Outpost
Win32.Neshta.A
7.1.1

AhnLab V3 Security
Win32/Neshta
2013.08.22

Avira AntiVirus
W32/Delf.I
7.11.30.172

avast!
Win32:Apanas [Trj]
2014.9-140722

AVG
Win32/Selges.D
2015.0.3406

Baidu Antivirus
Virus.Win32.Neshta.$a
4.0.3.14722

Bitdefender
Win32.Neshta.A
1.0.20.1015

Bkav FE
W32.HanGu.PE
1.3.0.4959

Clam AntiVirus
Neshta.B
0.98/19042

Comodo Security
Win32.Neshta.A
16801

Dr.Web
Win32.HLLP.Neshta
9.0.1.0203

Emsisoft Anti-Malware
Win32.Neshta
8.14.07.22.09

ESET NOD32
Win32/Neshta.B virus
8.7.0.302.0

Fortinet FortiGate
W32/Neshta.A
7/22/2014

F-Prot
W32/HLLP.41472
v6.4.6.5.141

F-Secure
Win32.Neshta.A
11.2014-22-07_3

G Data
Win32.Neshta
14.7.22

IKARUS anti.virus
Virus.Win32.Neshta
t3scan.2.0.127

K7 AntiVirus
Virus
13.170.9337

Kaspersky
Virus.Win32.Neshta
14.0.0.3523

Malwarebytes
Trojan.Agent
v2014.07.22.09

McAfee
W32/HLLP.41472.e
5600.7062

Microsoft Security Essentials
Virus:Win32/Neshta.A
1.163.1557.0

MicroWorld eScan
Win32.Neshta.A
15.0.0.609

NANO AntiVirus
Virus.Win32.Neshta.cdby
0.26.0.53954

Norman
Neshta.C
11.20140722

nProtect
Virus/W32.Neshta
13.08.21.03

Panda Antivirus
W32/Neshta.A
14.07.22.09

Qihoo 360 Security
Virus.Win32.Neshta.B
1.0.0.1015

Quick Heal
W32.Neshta.A
7.14.12.00

Reason Heuristics
Threat.Win.Reputation.IMP
14.7.22.9

Rising Antivirus
Win32.Netsha.a
23.00.65.14720

Sophos
W32/Bloat-A
4.91

Total Defense
Win32/Neshta.A
37.0.10498

Trend Micro House Call
PE_NESHTA.A
7.2.203

Trend Micro
PE_NESHTA.A
10.465.22

Vba32 AntiVirus
Virus.Win32.Neshta.a
3.12.22.3

VIPRE Antivirus
Virus.Win32.Neshta.a
20730

ViRobot
Win32.Neshta.B
2011.4.7.4223

File size:
2.3 MB (2,398,240 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\local\mailru\mailruupdater.exe

File PE Metadata
Compilation timestamp:
6/20/1992 2:22:17 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
49152:N/TiwcHfYsR1MNX0CuppwunZRpzmTrVRY5+P1syM7KNrQELxCUEO7L:dTe4U1XJmTZQEC

Entry address:
0x8178

Entry point:
55, 8B, EC, 83, C4, E0, 33, C0, 89, 45, E0, 89, 45, E8, 89, 45, E4, 89, 45, EC, B8, E8, 80, 40, 00, E8, 7E, BD, FF, FF, 33, C0, 55, 68, B4, 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, 18, EF, FF, FF, B8, B4, 91, 40, 00, B9, 09, 00, 00, 00, BA, 09, 00, 00, 00, E8, 04, EF, FF, FF, B8, C0, 91, 40, 00, B9, 03, 00, 00, 00, BA, 03, 00, 00, 00, E8, F0, EE, FF, FF, B8, DC, 91, 40, 00, B9, 03, 00, 00, 00, BA, 03, 00, 00, 00, E8, DC, EE, FF, FF, A1, 10, 92, 40...
 
[+]

Developed / compiled with:
Microsoft Visual C++

Code size:
29 KB (29,696 bytes)

Startup File (User Run)
Registry location:
HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

Name:
MailRuUpdater

Command:
C:\users\{user}\appdata\local\mailru\mailruupdater.exe


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