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    Severity High Analysis Summary According to researchers, a Golang-based botnet named GoBruteforcer has been discovered, which is specifically targeting web servers running FTP, MySQL, phpMyAdmin, and […]
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    Rewterz Threat Alert – DarkComet RAT (Remote Access Trojan) – Active IOCs
    Severity High Analysis Summary DarkComet RAT (Remote Administration Tool) is a type of malware that is designed to allow attackers to gain remote access to a […]
    March 15, 2023
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    Rewterz Threat Advisory -Multiple Microsoft Windows Products Vulnerabilties
    Severity High Analysis Summary CVE-2023-23410 CVSS:7.8 Microsoft Windows could allow a local authenticated attacker to gain elevated privileges on the system, caused by a flaw in […]

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    16
    pdf-file (1)
    Annual Threat Intelligence Report 2022
    • Threat Advisories
    • Monthly Threat Insights
    • Threat Intelligence Reports
  • Why Rewterz?

    About Us

    Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.

    Read More

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    At Rewterz, we believe that businesses have a responsibility to impact positively and contribute to the well-being of our communities as well as the planet. That's why we are committed to operating in a socially responsible and sustainable way.

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Rewterz Threat Advisory – Adobe Flash Player Zero-Day vulnerability CVE-2018-15982 exploited in APT Attacks

January 4, 2019

SEVERITY: Medium

 

 

CATEGORY: Informative Updates

 

 

ANALYSIS SUMMARY

 

 

Found to be exploited in two APT attacks earlier in December, a critical zero-day vulnerability in Adobe Flash Player (CVE-2018-15982) is still being used by attackers. The vulnerability is used to drop a payload embedded in Microsoft Word documents, to avoid anti-virus detection. The Word document with the zero-day Flash vulnerability payload compressed into a ZIP file with a JPG picture is sent to the victim. Once the word document is opened, the vulnerability is extracted and a shellcode from the JPG picture is executed.

The shellcode lets the attackers gain access to the compromised machine. The vulnerability payload has a similar digital signature as an intrusion tool which was written by Hacking Team, discovered in August 2018.

The vulnerability payload is packed with VMProtect to block efforts at reverse engineering and analysis.

 

 

Indicators of Compromise

 

 

  • 7eada4607bb4346cd5401096dd9859f7066b2c2ff8f70ce1cfed96fc8948261f
  • c1ea1daab2c5cdca159d2d9b78dfad6f3b1e9009c4334fdd0345f46a72f84f85
  • c079d068ba4852f2d647fce1a010e03f2882f79e1d66fff056e6224236022e66
  • 14bd1ab23d13543835821dd1fa5c17fc8c055341d09694971b5f2775c634f66e
  • 3b3b01988f949e2241bfc6f55ff0917af8ee62d582e1900b08c59ceac27d40ea
  • cde3f24f711d881ef0359b9660e75b4b370ab4460450cd055a909ede93843b2e
  • 990932bbba7db8037e6cdc15aad6af4101fc3e0a3f9e45800f7b3efc461bc919
  • 335292bbd782142dcb0e1b72c52702068b69090e1753c648c0c3e3a6fb8e16f2
  • 5e48f5fd3d5f896b7a0d27d535672a06f8178fba9a592a22d0cbd79a6ee28c99
  • 66b539b381b55499fca67cfd2b19b4aba08f95d10ca6348705cb54e5bab4b6bd
  • d5d19aa76a2e5efb5e18fb0a2b8339a7e558b3596c906f40a18bbe4964eaa40f
  • 5d26867f060bd09ec3c14c65a2db76e78474c5f835b63589a2feb3b5f7692522
  • 2d15b2f51ab2d7dc7e38766af74a23284d9f28345607012af88773b10561463d
  • d75710ebc8516e73e3a8dd7d1ad1ebc3221b7a141659c7e84b9f5f97dd7ec09e
  • 8c3c105291e7d95599753a0752668f902cbcd717600d285eeda3a777d97f284a
  • c61dd1b37cbf2d72e3670e3c8dff28959683e6d85b8507cda25efe1dffc04bdb
  • bd1a77e947cbf0da16ed9f585a2cfe055ff047a89f4bf9d0c8668d096cd5fb72
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  • 1fe611f1758f9ea879cface42e2e90180c122710974d076afaa5bc098b4dea12
  • 6d30c81a79c45e1a9060e46eafb6f1d64838cce73f016835f4951995f41d28f3
  • 2ddd2a7168d33b918f4ed7ef51dbd3c186ecc0d4d56b30b2f4dea7059f8e6f70
  • dee8891b732559afaa4b41e80e55f94b77ab953bf8bb1f2cdfb424c42bf93838
  • ca58dfa866f3d3e5cb84cae1941f67941f7eda454abd2ab0233e769d20cb8463
  • c9fa4f7411033c8fd55fcbc52878a7afdad49db139d0ec5fc2dfb6a18493e955
  • 067bf65bab461d20ef4280abc815835b615c8c53063bcdf79a5524632b7ebf1e
  • 830165b53bcb1a1dd045240e8592d6874476a4e89e935b8957e67547e7b8560a
  • 83b7e2627061c63b96c54fd1e0c08a325b2e56242a2dbb2c5d84bb6671046547
  • 5405915eb92f344f11c522cb94d06f22c0c6722054a10f977d815e2e9c10026b
  • 5ba3801c01ad56500b9a6812160a86fdd62791925210da73216a2051b5e31a82
  • 36f87d06dfe14930a0e4161ae3c5597ae66b5ce718bb6aef9934b5107e03b628
  • c92637ed738a9a0a64a179a0c0874a5878c5a8f88b9cf992b17a97fd6bf4b868
  • c87626f55e7a0a41b26a32b6eff361a5703db8071e92b6cf0a85880d321b33c7
  • 271cd104feae715f4b33132b7041809e6e874ca806e9dc2bd6c3707cbd974d4e
  • 7ece78bbf79fe91cc290837b52a90f72e33a9a9c295f6d3f345a23320ad0293f
  • 78fa099bb0fb44328fe230f67101e36efed29031bcefddcfba94e5b0de2b6b6e
  • cc146e473f27064b059e425bdc095ea257445decfecafbe973d4626b104defaa
  • f9d29c557ba626dfc69315f0f4a69c765159024383ec1262ea5666030a08620a
  • 9af4148f3c8e5cc2810230c124f29b497563de00d6c7e13686e39cdec13c6325
  • 9c6fbe25429d177fcac4cb53f85dacc58d84a618e3bddd1181cd0e604cb522ce
  • 29b0c64ce845630ac13ba7915887aa3df35dd46779d5c0babced3b092e641fc1
  • 6362eeeb192744b30e3fdbca1b6614ff16a53860fa0e3e5a72c5faabf4a355ce
  • 1232402bef625dc8328ece768e9943667389aed97207cf24f5215fe88b5f88ec
  • 2acd4824f1dbabcd8fe603a885541f81a33a3c704380ccda321a1c74c724bbc1
  • 49724d25ea31d8c45f153c1b1826120a7c1ab4fb096bd3374fd89af2d9282534
  • 7f0cbf9619229adca56b2e21626e0d324765d4d4bc54aac7541cfc3c710ff1f1
  • 182dc8eee63eefc15e92f5ba8580ee6ed4f7348145f3f04d5d4ae3f7013da72e
  • 6af9dbf95b0491dacc2df35f3dc1fcdba239e5f45fdbe76c6fd14ef5d0315d88
  • a126f3dceb99e6ba530ad330eaef6bd97d357d7839d3650f958a543dbaf4c04f
  • e7f1eb8c21c53fedeb4c034605cb6be19a5986965236296d5c08dca023ceefab
  • 5d0e1fbef981587ca431de0305f0ba4155996247d09a875cbde32362079b10a6
  • a2d9aed22527c4dde1e1fa29ac0edf09cc64541fc85300e1903ea215cd663c1a
  • f9c093f408a2c0c66116bb47f466a01fea73b06751962fb89b7c88be123b6a78

 

 

Remediation

 

The vendor has already released patches for vulnerable versions, as recommended in the previous advisory.

  • Please immediately update if you’re still using a vulnerable version.
  • Install the latest operating system patches.
  • Do not click on any suspicious pop ups or download files from suspicious websites.
  • Disable ads for Google Chrome, Firefox and Internet Explorer.
  • Ensure anti-virus software is updated with the latest signatures.
  • Consider blocking the threat indicators at their respective controls.
  • Don’t unsubscribe from spam. Instead, mark it as spam or junk and keep your email address private. Spam Botnet operators look for unsubscribes to ‘reply to’ so they can verify that the address is active.

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Managed Security Services

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Assess

  • Compromise Assessment
  • APT Assessment
  • Penetration Testing
  • Architecture Design & Review
  • Red Team Assessment
  • Purple Team Assessment
  • Social Engineering
  • Source Code Review

Transform

  • SOC Consultancy
  • SOC Maturity Assessment
  • SOC Model Evaluation
  • SOC Gap Analysis
  • SIEM Gap Analysis
  • SIEM Optimization
  • SOC Content Pack

Train

  • Simulated Cyber Attack Exercise
  • Tabletop Exercise
  • Security Awareness and Training

Respond

  • Incident Analysis
  • Incident Response

Threat Insights

  • Threat Advisories
  • Monthly Threat Insights
  • Threat Intelligence Reports

Resources

  • Blog
  • Press Releases

Connect With Us

  • Contact
  • Careers
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