Written by Robert Bailey
Spectating the PUP.Optional.CrossRider detection name usually means that your computer is in big danger. This virus can correctly be identified as ransomware – sort of malware which encrypts your files and forces you to pay for their decryption. Deleteing it requires some specific steps that must be taken as soon as possible.
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When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
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PUP.Optional.CrossRider detection is a virus detection you can spectate in your computer. It usually appears after the preliminary activities on your computer – opening the untrustworthy email messages, clicking the banner in the Web or setting up the program from untrustworthy sources. From the second it appears, you have a short time to act until it starts its harmful activity. And be sure – it is better not to wait for these harmful things.

What is PUP.Optional.CrossRider virus?

PUP.Optional.CrossRider is ransomware-type malware. It looks for the documents on your disk, encrypts it, and then asks you to pay the ransom for getting the decryption key. Besides making your files inaccessible, this malware additionally does a ton of damage to your system. It modifies the networking settings in order to stop you from checking out the removal articles or downloading the antivirus. In some cases, PUP.Optional.CrossRider can additionally stop the setup of anti-malware programs.

PUP.Optional.CrossRider Summary

Summarizingly, PUP.Optional.CrossRider virus activities in the infected PC are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Possible date expiration check, exits too soon after checking local time;
  • Dynamic (imported) function loading detected;
  • Enumerates running processes;
  • Authenticode signature is invalid;
  • Attempts to modify proxy settings;
  • Ciphering the files kept on the victim’s disk — so the victim cannot open these documents;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of security tools

Ransomware has been a horror story for the last 4 years. It is difficult to picture a more dangerous virus for both individual users and businesses. The algorithms used in PUP.Optional.CrossRider (typically, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have a lot more time than our galaxy already exists, and possibly will exist. However, that malware does not do all these terrible things instantly – it can require up to several hours to cipher all of your files. Hence, seeing the PUP.Optional.CrossRider detection is a clear signal that you must begin the elimination procedure.

Where did I get the PUP.Optional.CrossRider?

Usual tactics of PUP.Optional.CrossRider spreading are basic for all other ransomware examples. Those are one-day landing web pages where victims are offered to download the free program, so-called bait e-mails and hacktools. Bait e-mails are a quite new tactic in malware spreading – you get the email that simulates some routine notifications about deliveries or bank service conditions changes. Inside of the email, there is an infected MS Office file, or a link which leads to the exploit landing page.

Malicious email spam

Malicious email message. This one tricks you to open the phishing website.

Avoiding it looks quite simple, but still needs a lot of focus. Malware can hide in various places, and it is much better to prevent it even before it invades your system than to depend on an anti-malware program. General cybersecurity knowledge is just an essential thing in the modern world, even if your interaction with a PC stays on YouTube videos. That can keep you a great deal of money and time which you would certainly spend while seeking a solution.

PUP.Optional.CrossRider malware technical details

File Info:

name: 773B5915CAD1835F3006.mlw
path: /opt/CAPEv2/storage/binaries/6b9dc4f744568951c7970bed6fb9a331d7e17279408b11cfd328d044c2a1b255
crc32: 4F148305
md5: 773b5915cad1835f3006d00043f79a82
sha1: 282aad899678485a029cc68ae78e707055c61d78
sha256: 6b9dc4f744568951c7970bed6fb9a331d7e17279408b11cfd328d044c2a1b255
sha512: 30073ed4a19253ebc64ba572380c74d79372e2cf74c38ab13dbf5dbbac0f6dcebd1d64e5dd71e9c87049ce578ba8db4b430c5e0d2d978e0a037f4efddfd9f826
ssdeep: 1536:0/pq4X6fI3SLe0A1gEFcVSFlDWaJsWjcd+TSyJ:Uq86Ler+il2+TSyJ
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1C2836B0277E1D4B2F4220231696896B25E7EFD726DB19D5BB3CC034E1E741C05A3ABA7
sha3_384: 0d9fc731480909cfffd592db08c4387536ba5e403ec3964158f8f1c9e5433a4938364d183a3a642100ca61dcde1b4fa6
ep_bytes: e8605b0000e9000000006a1468783f41
timestamp: 2014-06-25 22:03:33

Version Info:

0: [No Data]

PUP.Optional.CrossRider also known as:

Elasticmalicious (high confidence)
CynetMalicious (score: 100)
ESET-NOD32a variant of Win32/Toolbar.Crossrider.AW potentially unwanted
EmsisoftGen:Application.Heur.fqW@lmWhkxki (B)
SophosGeneric PUA CI (PUA)
SentinelOneStatic AI – Malicious PE
MAXmalware (ai score=76)
RisingTrojan.Generic@ML.100 (RDML:S9TMCVQu5dm8gF2ZV6UdAQ)
CrowdStrikewin/malicious_confidence_100% (D)

How to remove PUP.Optional.CrossRider?

PUP.Optional.CrossRider malware is incredibly hard to erase by hand. It places its documents in several locations throughout the disk, and can restore itself from one of the elements. Moreover, a range of modifications in the registry, networking settings and also Group Policies are pretty hard to identify and return to the initial. It is much better to utilize a specific tool – exactly, an anti-malware app. GridinSoft Anti-Malware will definitely fit the best for malware elimination reasons.

Why GridinSoft Anti-Malware? It is really light-weight and has its detection databases updated almost every hour. Furthermore, it does not have such bugs and exploits as Microsoft Defender does. The combination of these facts makes GridinSoft Anti-Malware perfect for clearing away malware of any kind.

Remove the viruses with GridinSoft Anti-Malware

  • Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.
  • Gridinsoft Anti-Malware during the scan process

  • Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.
  • GridinSoft Anti-Malware scan results

  • When the scan is over, you may choose the action for each detected virus. For all files of [SHORT_NAME] the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
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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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