Pykspa.1

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Pykspa.1 infection?

In this article you will find about the meaning of Pykspa.1 as well as its negative impact on your computer system. Such ransomware are a kind of malware that is specified by on the internet frauds to demand paying the ransom by a target.

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In the majority of the cases, Pykspa.1 ransomware will certainly instruct its targets to start funds move for the objective of counteracting the modifications that the Trojan infection has introduced to the target’s device.

Pykspa.1 Summary

These alterations can be as adheres to:

  • Attempts to connect to a dead IP:Port (1 unique times);
  • Starts servers listening on 0.0.0.0:23584;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Performs some HTTP requests;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Looks up the external IP address;
  • Sniffs keystrokes;
  • Attempts to stop active services;
  • A process attempted to delay the analysis task by a long amount of time.;
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Creates a copy of itself;
  • Attempts to disable UAC.

    User Account Control or just UAC is a part of the Windows security system which prevents apps from making unwanted changes on PC.

    UAC includes several technologies 1:

    • File and egistry Virtualization;
    • Same-desktop Elevation;
    • Filtered Token;
    • User Interface Privilege Isolation;
    • Protected Mode Internet Explorer;
    • Installer Detection;
  • Attempts to modify UAC prompt behavior;
  • Ciphering the documents situated on the victim’s hard drive — so the sufferer can no more utilize the data;
  • Preventing regular access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.
Similar behavior
Related domains
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www.youtube.comTrojan-Ransom.Win32.Blocker.jcen
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Pykspa.1

One of the most common channels through which Pykspa.1 Ransomware are infused are:

  • By ways of phishing emails;
  • As a repercussion of user winding up on a resource that organizes a destructive software application;

As soon as the Trojan is effectively injected, it will certainly either cipher the information on the target’s PC or protect against the gadget from operating in an appropriate fashion – while likewise placing a ransom note that states the requirement for the targets to effect the settlement for the purpose of decrypting the records or bring back the data system back to the preliminary problem. In many instances, the ransom note will show up when the client reboots the COMPUTER after the system has actually currently been damaged.

Pykspa.1 distribution channels.

In numerous edges of the globe, Pykspa.1 expands by leaps and bounds. Nonetheless, the ransom notes and also tricks of extorting the ransom amount may vary depending on specific regional (local) setups. The ransom money notes as well as methods of extorting the ransom money amount might vary depending on certain regional (regional) setups.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software program.

    In specific areas, the Trojans commonly wrongfully report having actually found some unlicensed applications allowed on the victim’s gadget. The alert then requires the customer to pay the ransom.

    Faulty declarations about unlawful web content.

    In countries where software program piracy is much less preferred, this approach is not as reliable for the cyber frauds. Additionally, the Pykspa.1 popup alert may incorrectly declare to be originating from a police organization and will certainly report having situated kid pornography or other unlawful data on the gadget.

    Pykspa.1 popup alert might wrongly claim to be acquiring from a regulation enforcement establishment as well as will certainly report having situated youngster porn or other illegal data on the device. The alert will in a similar way include a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: FB1CA8F3
md5: a7a4425e76fc9c1208a43c1cd9db92eb
name: A7A4425E76FC9C1208A43C1CD9DB92EB.mlw
sha1: 287155fd33415ca0a6600117307994e80853a378
sha256: e4be1ca51b21f2d903d05515ee3794f649db55c9c9ee116d1f1c158f90e39973
sha512: 8e4d60affc3b34415ccecd893fd9c098a66df3e50103e1ffd58509b7281823274352aa5aa3ae2df0264a60412e72b3170d43ec7dd13996573c063829c0a36551
ssdeep: 6144:M3Be8ySm8hQAAIfFrRXuEE+0l97mKwKbwHVlkk86JQPDHDdx/Qtqa:V/zkFF+EExZmKbbQVDPJQPDHvd
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Pykspa.1 also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
DrWebTrojan.Siggen.36621
MicroWorld-eScanGen:Variant.Pykspa.1
FireEyeGeneric.mg.a7a4425e76fc9c12
CAT-QuickHealTrojan.Mauvaise.SL1
Qihoo-360Worm.Win32.Pykse.A
ALYacGen:Variant.Pykspa.1
CylanceUnsafe
VIPREWorm.Win32.Skyper.b (v)
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 003da8d71 )
BitDefenderGen:Variant.Pykspa.1
K7GWTrojan ( 003da8d71 )
Cybereasonmalicious.e76fc9
BitDefenderThetaGen:NN.ZexaF.34590.rnW@a8xcD8f
CyrenW32/Pykspa.A.gen!Eldorado
SymantecW32.Pykspa.D
TotalDefenseWin32/Vilsel.CE
ZonerTrojan.Win32.24407
TrendMicro-HouseCallWORM_VILSEL.SMC
AvastWin32:Renos-KY [Trj]
ClamAVWin.Worm.Pykspa-1
KasperskyTrojan-Ransom.Win32.Blocker.jcen
NANO-AntivirusTrojan.Win32.Agent.ctkmgw
ViRobotTrojan.Win32.Blocker.Gen.B
RisingWorm.Autorun!1.BC87 (CLOUD)
Ad-AwareGen:Variant.Pykspa.1
SophosML/PE-A + W32/Pykse-F
ComodoWorm.Win32.Autorun.Agent_TG0@1isiwy
F-SecureTrojan-Downloader:W32/Renos.gen!T
BaiduWin32.Worm.Autorun.o
ZillyaTrojan.Vilsel.Win32.3418
TrendMicroWORM_VILSEL.SMC
McAfee-GW-EditionBehavesLike.Win32.Pykse.tz
SentinelOneStatic AI – Malicious PE
EmsisoftGen:Variant.Pykspa.1 (B)
IkarusTrojan.Win32.AntiAV
JiangminTrojan/Blocker.lhz
WebrootW32.Trojan.Vilsel.Gen
AviraTR/Agent.327680.A
Antiy-AVLTrojan/Win32.AntiAV
MicrosoftWorm:Win32/Pykspa.C
ArcabitTrojan.Pykspa.1
SUPERAntiSpywareWorm.SkypeBot
ZoneAlarmTrojan-Ransom.Win32.Blocker.jcen
GDataWin32.Trojan.PSE.KF4I2L
CynetMalicious (score: 100)
AhnLab-V3Trojan/Win32.Zepfod.R4378
Acronissuspicious
McAfeeW32/Pykse.worm.gen.a
MAXmalware (ai score=88)
VBA32Trojan.ChidikSun.28205
MalwarebytesGeneric.Worm.Agent.DDS
PandaTrj/Vilsel.B
APEXMalicious
ESET-NOD32Win32/AutoRun.Agent.TG
TencentWorm.Win32.Pykspa.a
YandexTrojan.GenAsa!R41E4MI3PTc
TACHYONRansom/W32.Blocker.1331200.B
eGambitUnsafe.AI_Score_99%
FortinetW32/Agent.XEK!tr
AVGWin32:Renos-KY [Trj]
CrowdStrikewin/malicious_confidence_100% (W)
MaxSecureTrojan.Ransom.Blocker.iprw

How to remove Pykspa.1 ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft2

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft3.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Pykspa.1 files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Pykspa.1 you can always ask me in the comments for getting help.

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References

  1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server
  2. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  3. More information about GridinSoft products: https://gridinsoft.com/comparison

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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