Win32:SwPatch [Wrm]

Written by Robert Bailey

What is Win32:SwPatch [Wrm] infection?

In this article you will certainly discover concerning the meaning of Win32:SwPatch [Wrm] and also its negative impact on your computer. Such ransomware are a kind of malware that is specified by online fraudulences to require paying the ransom money by a victim.

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Most of the instances, Win32:SwPatch [Wrm] infection will certainly advise its sufferers to initiate funds move for the purpose of reducing the effects of the modifications that the Trojan infection has actually presented to the sufferer’s device.

Win32:SwPatch [Wrm] Summary

These modifications can be as follows:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
  • Expresses interest in specific running processes;
  • A process created a hidden window;
  • 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • A process attempted to delay the analysis task by a long amount of time.;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • 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.
  • 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;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to modify Explorer settings to prevent file extensions from being displayed;
  • Attempts to modify Explorer settings to prevent hidden files from being displayed;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the records found on the target’s hard disk drive — so the victim can no more use the data;
  • Preventing regular accessibility to the target’s workstation;

Win32:SwPatch [Wrm]

One of the most common networks where Win32:SwPatch [Wrm] are injected are:

  • By methods of phishing emails;
  • As an effect of individual winding up on a resource that organizes a malicious software application;

As quickly as the Trojan is efficiently infused, it will either cipher the information on the victim’s computer or prevent the tool from operating in a proper way – while additionally putting a ransom note that discusses the requirement for the targets to effect the repayment for the purpose of decrypting the papers or bring back the documents system back to the preliminary condition. In many circumstances, the ransom money note will turn up when the client reboots the PC after the system has actually already been harmed.

Win32:SwPatch [Wrm] circulation networks.

In numerous corners of the globe, Win32:SwPatch [Wrm] expands by leaps as well as bounds. However, the ransom notes and also tricks of extorting the ransom money amount might vary relying on specific regional (local) setups. The ransom money notes and techniques of extorting the ransom money quantity might vary depending on certain regional (regional) settings.

Ransomware injection

For instance:

    Faulty alerts regarding unlicensed software program.

    In specific areas, the Trojans commonly wrongfully report having actually identified some unlicensed applications made it possible for on the sufferer’s gadget. The sharp after that requires the customer to pay the ransom.

    Faulty declarations regarding unlawful web content.

    In countries where software program piracy is less preferred, this method is not as efficient for the cyber scams. Alternatively, the Win32:SwPatch [Wrm] popup alert may wrongly claim to be deriving from a police institution and will report having situated youngster porn or other prohibited data on the gadget.

    Win32:SwPatch [Wrm] popup alert may incorrectly claim to be obtaining from a legislation enforcement institution as well as will certainly report having located child pornography or other illegal information on the tool. The alert will in a similar way consist of a need for the user to pay the ransom.

Technical details

File Info:

crc32: A8E63F5B
md5: 826024daf45f4c81fcb67617ba1aa14c
name: 826024DAF45F4C81FCB67617BA1AA14C.mlw
sha1: c99272d8b40e2d358cdd13920173e506b7a0612a
sha256: 91065d83c0317819f07b951502ad62085b331ea862192a5d2a6bb7d59bd6ab08
sha512: 7d574eda0fbfef1beea2fda3c4e5ee503d7010aa9507812f5e10b4d45b66d82c10d78b907e928e08babfa0e2b356a58b51c1fd42746ed4c481d767410e310aa5
ssdeep: 24576:PTyqwxPL06jzvSzVm4KS0Ppc/J9UFDcHQftFWs+dDlSuS0YLLWXCK6d16DGZ4w7:PuqWPA6vjraHQftyz8uXCXAKB7
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32:SwPatch [Wrm] also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 00573f0e1 )
Elastic malicious (high confidence)
DrWeb Trojan.Packed
MicroWorld-eScan Gen:Trojan.Heur.TP.TnW@b07VMRl
ALYac Gen:Trojan.Heur.TP.TnW@b07VMRl
Malwarebytes Trojan.VirLock
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/polyransom.ali1020002
K7GW Trojan ( 00573f0e1 )
Cybereason malicious.af45f4
Cyren W32/Virlock.N2.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Virlock.AJ
APEX Malicious
Avast Win32:SwPatch [Wrm]
Cynet Malicious (score: 100)
BitDefender Gen:Trojan.Heur.TP.TnW@b07VMRl
NANO-Antivirus Trojan.Win32.Gena.doticp
Tencent Win32.Virus.Polyransom.Dyps
Ad-Aware Gen:Trojan.Heur.TP.TnW@b07VMRl
Sophos ML/PE-A + Mal/EncPk-NS
Comodo TrojWare.Win32.Virlock.XU@5xaovq
BitDefenderTheta AI:Packer.9D59E1CD1E
VIPRE Virus.Win32.Nabucur.b (v)
TrendMicro TROJ_GEN.R03BC0RB321
McAfee-GW-Edition BehavesLike.Win32.VirRansom.tc
FireEye Generic.mg.826024daf45f4c81
Emsisoft Gen:Trojan.Heur.TP.TnW@b07VMRl (B)
SentinelOne Static AI – Malicious PE
Avira TR/Crypt.ZPACK.Gen
Arcabit Trojan.Heur.TP.EAABC9
AegisLab Virus.Win32.PolyRansom.mfPW
GData Gen:Trojan.Heur.TP.TnW@b07VMRl
TACHYON Virus/W32.VirRansom
Acronis suspicious
McAfee W32/VirRansom.b!826024DAF45F
MAX malware (ai score=83)
VBA32 Virus.VirLock
Panda Generic Suspicious
TrendMicro-HouseCall TROJ_GEN.R03BC0RB321
Rising Malware.Heuristic!ET#95% (RDMK:cmRtazpfxH7pD/Gkvql9PLfs182w)
Ikarus Virus.Win32.Virlock
Fortinet W32/Virlock.B
AVG Win32:SwPatch [Wrm]
Paloalto generic.ml
Qihoo-360 Win32/Ransom.PolyRansom.HxQBcnoA

How to remove Win32:SwPatch [Wrm] virus?

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 Win32:SwPatch [Wrm] 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 Win32:SwPatch [Wrm] 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/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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