optiline.com
cactus listed this organization on its leak site on Mar 21, 2025.
- Listing date
- Mar 21, 2025
- Attack date
- Dec 25, 2024
Listing text
27.02.2025 UPDATE! 100% Disclosed 947GB >> Download link #2Commercial & Residential Construction. “Optiline Enterprises specializes in a variety of construction services including interior and exterior steel framing, drywall and drywall finishes, insulation and soundproofing, EIFS (Exterior Insulation Finishing System) & cultured stone. They bring high-volume building and retail exterior experience to the table, combined with family values.” Website: https://www.optiline.com/ Revenue : $127.3M Address: 157 Main Dunstable Rd Ste 102, Nashua, New Hampshire, 03060, United States Phone Number: (603) 402-1446 Download link #1: https://6wuivqgrv2g7brcwhjw5co3vligiqowpumzkcyebku7i2busrvlxnzid.onion/OPTILINE/PROOF/ Mirror: https://cactus5dqnqkppa5ayckiyk6dttpqwczdqphv5mxh4dkk5ct544q5aad.onion/OPTILINE/PROOF/Download link #2: https://jvtxo5gdcgloguty322ynfnpqkc2whe2jauc7ucm7bzmgct3k7ogr4yd.onion/OPTILINE DATA DESCRIPTIONS: Personal Identifiable Information, database backups, corporate confidential data: projects, drawings, customer data, financial docs\payrolls, employee and executives corporate and personal docs, correspondence, corporate dropbox, etc.
About the group
cactus posted its first listing on Jul 20, 2023 and has listed 248 organizations to date.
The CACTUS ransomware is said to have emerged around March 2023. The group became known for exploiting vulnerabilities to gain initial access and maintain a presence within the organization's infrastructure. There is little known information about the ransomware group, except that it emerged on the mentioned date and, following encryption, a text file named 'cAcTuS.readme.txt' would be created. Additionally, encrypted files were altered to the '.cts1' extension, and data exfiltration and victim extortion were conducted through the use of the service known as Tox.
Learning center
What does this listing mean?
Ransomware groups move data out of the organization before encrypting systems and threaten to publish it if the ransom is not paid. This method is called double extortion.
The listing shows that the group claims to have targeted the organization. Whether the data was published is shown by the later status of the listing.
What should you do if your organization is listed on a leak site?
- Record the listing and any published sample files; do not visit the leak site from the corporate network.
- Isolate affected systems and preserve logs without deleting them.
- Determine which data left the organization; if personal data is involved, review notification obligations with your legal team.
- Make any decision about the ransom demand together with legal, management and incident response.
- Do not bring systems back online before the attacker’s entry point is closed.
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