Trojan:Win32/Occamy.C (Occamy Trojan)

What is Trojan:Win32/Occamy.C infection?

In this short article you will certainly find regarding the meaning of Trojan:Win32/Occamy.C as well as its unfavorable influence on your computer. This virus can correctly be classified as hacktool – a program which is designed and used to break different security elements of an operating system.

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In the majority of the instances, Trojan:Win32/Occamy.C hacktool will not show any signs of its presence. However, the user may notice the changes in the components he uses every day because this virus can’t make everything quiet.

Name Occamy trojan
Threat Type Trojan Downloader, Troajn Password Stealer, Banking Trojan, Spyware
Symptoms Designed to stealthily infiltrate victim’s computer and remain silent thus no particular symptoms are clearly visible on an infected PC.
Distribution Email attachments, malicious online advertisements, social engineering, torrents, cracks.
Risks Stolen banking information, passwords, identity theft, victim’s computer added to a botnet.

Trojan:Win32/Occamy.C Summary

These modifications can be as adheres to:

  • 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 a shellcode isn’t a big deal. It’s just data. The problem arises when the attacker can 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.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system. It reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
Similar behavior
Related domains
z.whorecord.xyz Trojan-Ransom.Win32.Agent.avzu
a.tomx.xyz Trojan-Ransom.Win32.Agent.avzu

Trojan:Win32/Occamy.C distribution ways

The majority of cases of Trojan:Win32/Occamy.C malware delivery goes to these ways:

  • Email spamming or spamming in social networks/communication platforms
  • Usage of unlicensed (hacked) programs or dubious tools
  • Malicious advertisements on the internet (ads with a malicious link or file inside)
  • Malicious advertisements on the web, however, is an old-timer of malware distribution. And the advice to stop clicking the blinking advertisements on untrustworthy websites exists as long as the ads on the Internet. You can also install ad-blocking plugins for your web browser – they will deal with any ads. However, if they are generated by adware already present on your PC, ad blockers will be useless.

    Email spamming became a prevalent malware distribution method since the users do not raise suspicion on notifications from DHL or Amazon about the incoming delivery. However, it is quite easy to distinguish the malevolent email from the original one. One which is sent by cybercriminals has a strange sender address – something like [email protected]. Simultaneously, the original email address has a specific domain name (@amazon.com or @dhl.us) and can also be seen on the official website in the “Contact us” tab.

    Software bundling is a widespread practice among the virus developers. Users who hack the programs to make them usable without purchasing a license approve any offer to include another program in the pack because they are gaining money in such a way. Check precisely the installation window for signs like “Advanced installation settings” or so. The ability to switch off the malware installation often hides under such items.

    Effects of Trojan:Win32/Occamy.C activity.

    In different edges of the world, victims of the Backdoor:Win32/Bladabindi!ml say about different signs of virus activity. Nonetheless, the common sign that your PC was attacked by a hack tool is disabling the security mechanisms (passwords) in the major system elements.

    Ransomware injection

    Changes that Trojan makes:Win32/Occamy.C activity virus are next:

    Disabling the Windows Defender. An embedded anti-malware solution from Microsoft is a favorite target of malware creators. And since it is so easy to disable through Group Policies, every second trojan virus makes this action. Trojan:Win32/Occamy.C activity is not an exception. After that step, you will not get a notification about the detected malware.

    Making several complicated manipulations with the system security settings. The virus disables a visible security mechanism and turns off the methods used by the system to prevent malware execution. Under this term, I mean the forbid to launch the VBS scripts, disabled by default MS Office macroses or remote registry editing facilities.

    Password extraction. Users who make use of a local Windows account may lose their credentials. The local account password is stored in a separate area of the Winlogon process in encrypted form. The virus may easily call the decrypt function and get the password of your account, as well as passwords of all users of your PC and local network.

    Technical details

    File Info:

    crc32: 433A57A0md5: e3648731a36105980f5fae6b4afe614bname: officeupd.fftsha1: 85db743d14fbd83f893ec34dbdf57d0344e16156sha256: 877c735650488f81807239a0ca564c8faa660a8c9141a9aba2049b9fe1d5b2fbsha512: dcf4742b7c059f4580d9bbee1c5e444eb37bc1ab4c183bb7697ac33cc8d74a2d2ad9016ba1dc6429deb31d7fc1cd101d3544806411682d49147b4fc08b0eea2fssdeep: 12288:3qhfOhBJUmIa4cQ5VSdQpRSZZLPwPqnk7HLhPQ9dLz6D:I9dXrEEw/PwP4k71I9dLz6Dtype: PE32 executable (GUI) Intel 80386, for MS Windows

    Version Info:

    0: [No Data]

    Trojan:Win32/Occamy.C also known as:

    GridinSoft Trojan.Ransom.Gen
    DrWeb Trojan.Encoder.30215
    MicroWorld-eScan Gen:Variant.Razy.586549
    McAfee Artemis!E3648731A361
    Malwarebytes Trojan.Injector
    Sangfor Malware
    K7AntiVirus Trojan ( 0055c6211 )
    BitDefender Trojan.GenericKD.32762293
    K7GW Trojan ( 0055c6211 )
    Cybereason malicious.d14fbd
    BitDefenderTheta Gen:NN.ZexaF.32515.fvW@a0xk7!di
    Symantec Downloader
    APEX Malicious
    ClamAV Win.Trojan.Agent-7412843-0
    GData Trojan.GenericKD.32762293
    Kaspersky Trojan-Ransom.Win32.Agent.avzu
    AegisLab Trojan.Win32.Malicious.4!c
    Rising [email protected] (RDMK:rUN0MZOa0Bol/tTHexDcew)
    Endgame malicious (high confidence)
    Sophos Mal/Generic-S
    F-Secure Trojan.TR/Crypt.Agent.ykspw
    Invincea heuristic
    McAfee-GW-Edition BehavesLike.Win32.VBObfus.tt
    Ikarus Trojan.Win32.Inject
    Cyren W32/Trojan.VBUD-1977
    Webroot W32.Adware.Gen
    Avira TR/Crypt.Agent.ykspw
    MAX malware (ai score=85)
    Arcabit Trojan.Razy.D8F335
    ZoneAlarm Trojan-Ransom.Win32.Agent.avzu
    Microsoft Trojan:Win32/Occamy.C
    Acronis suspicious
    ALYac Trojan.Ransom.ChaCha
    Panda Trj/CI.A
    ESET-NOD32 a variant of Win32/Kryptik.GYWN
    TrendMicro-HouseCall TROJ_FRS.VSNTKS19
    SentinelOne DFI – Malicious PE
    Ad-Aware Trojan.GenericKD.32762293
    AVG FileRepMalware
    Paloalto generic.ml
    CrowdStrike win/malicious_confidence_100% (W)
    Qihoo-360 HEUR/QVM19.1.81F7.Malware.Gen

    How to remove Trojan:Win32/Occamy.C 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 GridinSoft1

    Run the setup file.

    Run Setup.exe
    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 Scanning

    Click on “Clean Now”.

    GridinSoft Anti-Malware Scan Result

    Are Your Protected?

    Full version of GridinSoft

    If the guide doesn’t help you remove Trojan:Win32/Occamy.C, you can always ask me in the comments to get help.

    References

      About the author

      Robert Bailey

      Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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